RANKING · 1990 CENSUS · 500 SHOWN OF 3,122

Most graduate degrees, US counties · 1990

US counties ranked by the share of adults 25+ holding a graduate or professional degree (1990 ACS). Los Alamos County, New Mexico leads at 29.7%. 3,122 counties qualify in total. Virginia carries 6 of the top 25 entries. The median across all 3,122 is 3.7%.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDMost college graduates Most educated Least educated Fewest graduate degrees

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPGRADUATE DEGREEVS –

USUnited States248,709,8737.1%–

01Los Alamos County, NMNM19,40729.7%–

02Falls Church, VAVA15,15925.6%–

03Arlington County, VAVA243,93124.0%–

04Orange County, NCNC152,49823.5%–

05Tompkins County, NYNY104,04723.5%–

06Montgomery County, MDMD1,074,58223.2%–

07Washtenaw County, MIMI370,21420.8%–

08Whitman County, WAWA48,51220.4%–

09Fairfax County, VAVA1,167,87320.3%–

10Williamsburg, VAVA15,86120.2%–

11New York County, NYNY1,664,86220.1%–

12Johnson County, IAIA160,04420.0%–

13Clay County, SDSD15,03119.5%–

14Alexandria, VAVA160,66219.3%–

15Howard County, MDMD339,18319.2%–

16Benton County, OROR97,72819.0%–

17Clarke County, GAGA129,92118.4%–

18Champaign County, ILIL209,97217.8%–

19Albemarle County, VAVA118,35617.5%–

20Story County, IAIA101,29117.3%–

21District of Columbia, DCDC693,64517.2%–

22Monroe County, ININ143,34517.2%–

23Brazos County, TXTX249,08817.2%–

24Alachua County, FLFL290,02817.0%–

25Marin County, CACA253,69417.0%–

26Douglas County, KSKS120,92016.7%–

27Albany County, WYWY38,55816.7%–

28Westchester County, NYNY1,015,74316.6%–

29Charlottesville, VAVA44,38816.5%–

30Boulder County, COCO328,56016.4%–

31Boone County, MOMO191,74616.2%–

32Montgomery County, VAVA98,43416.2%–

33Latah County, IDID41,84216.2%–

34Oktibbeha County, MSMS51,89615.6%–

35Leon County, FLFL299,04815.6%–

36Centre County, PAPA157,39315.6%–

37Middlesex County, MAMA1,669,97915.4%–

38Riley County, KSKS72,59815.3%–

39Hampshire County, MAMA164,06515.3%–

40Tippecanoe County, ININ190,45615.3%–

41Lexington, VAVA7,76915.2%–

42Fairfax, VAVA26,77215.2%–

43Monongalia County, WVWV107,99115.1%–

44Somerset County, NJNJ356,48615.0%–

45Durham County, NCNC347,24014.4%–

46Payne County, OKOK83,88914.2%–

47Rockland County, NYNY357,39714.2%–

48Lafayette County, MSMS59,59714.1%–

49Jackson County, ILIL52,50114.1%–

50James City County, VAVA83,32613.9%–

51Radford, VAVA17,24313.8%–

52Yolo County, CACA224,41013.7%–

53Dane County, WIWI590,37513.5%–

54Norfolk County, MAMA739,74913.4%–

55Morris County, NJNJ524,25113.4%–

56Chittenden County, VTVT169,11513.3%–

57Santa Fe County, NMNM156,90713.2%–

58Nassau County, NYNY1,398,93913.0%–

59Albany County, NYNY321,22513.0%–

60San Francisco County, CACA826,07913.0%–

61Ingham County, MIMI289,70912.9%–

62Oconee County, GAGA44,89312.8%–

63Montgomery County, PAPA877,64312.6%–

64Mercer County, NJNJ399,28912.6%–

65Johnson County, KSKS636,90612.4%–

66Hunterdon County, NJNJ131,78112.4%–

67Chester County, PAPA557,11612.3%–

68Harrisonburg, VAVA50,83912.3%–

69Lincoln Parish, LALA48,36012.2%–

70York County, VAVA71,37412.2%–

71Travis County, TXTX1,389,67012.2%–

72Hamilton County, ININ387,03612.1%–

73Larimer County, COCO377,29212.1%–

74Santa Clara County, CACA1,914,39112.0%–

75Athens County, OHOH63,19712.0%–

76Fayette County, KYKY329,75112.0%–

77Watauga County, NCNC54,78612.0%–

78DuPage County, ILIL934,29812.0%–

79Gunnison County, COCO17,43911.9%–

80Brookings County, SDSD37,63511.9%–

81Putnam County, NYNY99,02811.9%–

82Gallatin County, MTMT128,74011.9%–

83Bergen County, NJNJ977,02611.8%–

84Douglas County, COCO399,39611.8%–

85Juneau, AKAK31,60911.7%–

86Washington County, RIRI129,79511.6%–

87Lee County, ALAL189,88111.5%–

88Cache County, UTUT145,00011.5%–

89Lake County, ILIL719,33911.5%–

90DeKalb County, GAGA774,39411.4%–

91Brewster County, TXTX9,45811.4%–

92Suffolk County, MAMA791,89111.3%–

93San Juan County, WAWA18,57711.3%–

94Oakland County, MIMI1,288,33711.2%–

95Newport County, RIRI83,05111.2%–

96Midland County, MIMI83,75411.2%–

97Poquoson, VAVA13,29211.2%–

98Jefferson County, IAIA15,29111.2%–

99DeKalb County, ILIL101,83511.2%–

100San Mateo County, CACA743,56811.1%–

101Greene County, OHOH174,32211.1%–

102Bernalillo County, NMNM667,60111.0%–

103Leavenworth County, KSKS84,59011.0%–

104Collin County, TXTX1,297,17910.9%–

105Olmsted County, MNMN166,73110.9%–

106Alameda County, CACA1,636,63010.9%–

107Ouray County, COCO5,26510.9%–

108Wake County, NCNC1,257,23510.9%–

109Kalamazoo County, MIMI263,79510.9%–

110Bristol County, RIRI50,00110.8%–

111Williamson County, TNTN272,06110.8%–

112Monmouth County, NJNJ651,03510.7%–

113Arapahoe County, COCO673,82010.7%–

114Gilpin County, COCO6,07310.7%–

115Contra Costa County, CACA1,170,07010.6%–

116Denver County, COCO740,61310.6%–

117Dukes County, MAMA21,21910.5%–

118Santa Cruz County, CACA258,85210.4%–

119Grafton County, NHNH93,22510.4%–

120Fulton County, GAGA1,098,79110.4%–

121McDonough County, ILIL25,91610.4%–

122Loudoun County, VAVA449,74910.2%–

123St. Louis County, MOMO990,91110.2%–

124Dutchess County, NYNY300,70810.1%–

125Addison County, VTVT38,04810.1%–

126King County, WAWA2,344,93910.0%–

127Santa Barbara County, CACA442,06510.0%–

128Monroe County, NYNY750,50610.0%–

129Isabella County, MIMI64,69110.0%–

130Baltimore County, MDMD847,65010.0%–

131Clear Creek County, COCO8,9949.9%–

132Suffolk County, NYNY1,546,0909.9%–

133East Baton Rouge Parish, LALA456,1809.8%–

134Adair County, MOMO25,6849.8%–

135Ramsey County, MNMN541,6239.8%–

136Franklin County, MAMA70,6989.8%–

137Schenectady County, NYNY162,5819.7%–

138Richland County, SCSC434,9569.7%–

139Hinds County, MSMS211,8889.7%–

140Cleveland County, OKOK303,9739.7%–

141Montour County, PAPA17,8689.6%–

142Alamosa County, COCO16,6889.6%–

143Calloway County, KYKY39,4219.6%–

144Madison County, ALAL433,5169.6%–

145Middlesex County, NJNJ883,3359.5%–

146Jefferson County, COCO580,4519.5%–

147Pitkin County, COCO16,6259.5%–

148Anchorage, AKAK287,1559.5%–

149Saratoga County, NYNY241,3439.4%–

150Ozaukee County, WIWI94,3469.4%–

151Essex County, MAMA826,6539.4%–

152Delaware County, OHOH242,0329.3%–

153Essex County, NJNJ896,3799.3%–

154Rowan County, KYKY24,4769.3%–

155San Miguel County, COCO7,7539.3%–

156Lancaster County, NENE334,0499.3%–

157Prince William County, VAVA502,9669.3%–

158Custer County, OKOK28,1759.3%–

159Prince George's County, MDMD970,3749.3%–

160Onondaga County, NYNY466,5849.3%–

161Fairbanks North Star, AKAK93,9729.3%–

162Windham County, VTVT45,2049.3%–

163Union County, NJNJ601,8639.3%–

164Barnstable County, MAMA233,5399.3%–

165Cumberland County, MEME317,2229.2%–

166Jackson County, NCNC45,0399.2%–

167Delaware County, PAPA580,9379.2%–

168New Castle County, DEDE588,0269.2%–

169Orleans Parish, LALA362,1549.2%–

170Washington County, OROR611,7089.2%–

171La Plata County, COCO56,8989.2%–

172Montgomery County, ALAL225,8919.1%–

173Washington County, VTVT59,6529.1%–

174Franklin County, OHOH1,361,5369.1%–

175Cobb County, GAGA793,3459.1%–

176Geauga County, OHOH95,6769.1%–

177Coconino County, AZAZ144,3689.1%–

178Ulster County, NYNY183,3309.1%–

179Hays County, TXTX304,3909.1%–

180Tuscaloosa County, ALAL241,3689.1%–

181Orange County, CACA3,149,5079.1%–

182Rockwall County, TXTX140,7389.1%–

183El Paso County, COCO757,0409.1%–

184Bulloch County, GAGA86,9499.1%–

185Denton County, TXTX1,069,3469.0%–

186Nantucket County, MAMA14,7589.0%–

187McLean County, ILIL171,4199.0%–

188Lewis and Clark County, MTMT75,3319.0%–

189Pima County, AZAZ1,074,6859.0%–

190Henrico County, VAVA342,7758.9%–

191Hennepin County, MNMN1,284,7848.9%–

192Johnson County, MOMO56,6708.9%–

193Cherokee County, OKOK49,1968.9%–

194Rensselaer County, NYNY160,5108.9%–

195Richmond, VAVA237,2578.9%–

196Blaine County, IDID25,5178.9%–

197Windsor County, VTVT57,3128.8%–

198Orange County, VTVT30,0028.8%–

199San Diego County, CACA3,282,2488.8%–

200Anne Arundel County, MDMD603,3808.8%–

201Boone County, ININ80,6898.8%–

202Missoula County, MTMT123,5138.8%–

203Summit County, UTUT43,1418.8%–

204Sarpy County, NENE208,3038.8%–

205Fort Bend County, TXTX975,1918.8%–

206Vigo County, ININ106,5128.8%–

207Shelby County, ALAL238,5528.7%–

208Chesterfield County, VAVA397,1488.7%–

209Summit County, COCO31,5178.7%–

210Teton County, WYWY23,3338.7%–

211Merrimack County, NHNH158,0788.7%–

212Otsego County, NYNY60,5898.7%–

213Hamilton County, OHOH838,4188.6%–

214Thurston County, WAWA304,2618.6%–

215Madison County, KYKY101,6968.6%–

216Lane County, OROR381,5848.6%–

217Allegheny County, PAPA1,225,0358.5%–

218Bucks County, PAPA647,8288.5%–

219Davidson County, TNTN745,9048.5%–

220Knox County, TNTN511,4538.5%–

221Columbia County, GAGA169,1898.5%–

222Franklin County, KYKY52,6498.4%–

223Richmond County, NYNY501,2908.4%–

224Woods County, OKOK8,4438.4%–

225Delaware County, ININ113,1068.4%–

226Lamoille County, VTVT26,2948.4%–

227Wood County, OHOH134,1768.3%–

228Frederick County, MDMD302,8838.3%–

229Cook County, ILIL5,194,6258.3%–

230Bristol Bay, AKAK8478.3%–

231St. Johns County, FLFL346,3288.3%–

232Lynchburg, VAVA81,3478.3%–

233Broome County, NYNY195,7368.3%–

234Hillsborough County, NHNH433,4158.3%–

235Pitt County, NCNC182,9368.3%–

236Leelanau County, MIMI22,9828.3%–

237Madison County, MSMS116,2988.2%–

238Utah County, UTUT759,8598.2%–

239Pulaski County, ARAR404,6118.2%–

240Doña Ana County, NMNM229,0918.2%–

241Worcester County, MAMA888,5028.2%–

242Sangamon County, ILIL194,1708.2%–

243Polk County, OROR90,0378.2%–

244Dallas County, TXTX2,661,3978.2%–

245Multnomah County, OROR795,3918.2%–

246Lyon County, KSKS32,2668.1%–

247Coles County, ILIL46,6078.1%–

248Washington County, OKOK54,0378.1%–

249Bennington County, VTVT36,6308.1%–

250Queens County, NYNY2,358,1828.1%–

251Cheshire County, NHNH78,2698.1%–

252St. Joseph County, ININ272,8618.1%–

253Lubbock County, TXTX328,9068.1%–

254Harris County, TXTX5,045,0268.1%–

255Kleberg County, TXTX30,3158.1%–

256Grand Forks County, NDND74,5018.1%–

257Berkshire County, MAMA128,2248.1%–

258Buffalo County, NENE51,1728.1%–

259Rockingham County, NHNH324,0778.1%–

260Roosevelt County, NMNM18,6158.0%–

261Erie County, NYNY946,7418.0%–

262Warren County, KYKY149,3758.0%–

263Fredericksburg, VAVA30,3938.0%–

264San Miguel County, NMNM26,2608.0%–

265Beaufort County, SCSC204,4338.0%–

266Lamar County, MSMS67,4038.0%–

267Orange County, NYNY417,6698.0%–

268Park County, COCO18,3148.0%–

269Nacogdoches County, TXTX66,0357.9%–

270Union County, PAPA42,3137.9%–

271Sarasota County, FLFL479,9587.9%–

272Sonoma County, CACA486,4447.9%–

273Ventura County, CACA830,8517.9%–

274Cabell County, WVWV91,1837.9%–

275Honolulu County, HIHI988,7037.9%–

276Mecosta County, MIMI42,3207.8%–

277Los Angeles County, CACA9,694,9347.8%–

278Porter County, ININ176,0497.8%–

279Routt County, COCO25,3297.8%–

280Charleston County, SCSC436,2007.8%–

281Benton County, WAWA221,7227.8%–

282Seminole County, FLFL491,8847.8%–

283Erath County, TXTX43,9117.8%–

284Allegany County, NYNY46,8007.8%–

285Douglas County, NENE606,4607.8%–

286Washington County, ARAR271,2137.8%–

287Jessamine County, KYKY57,1477.8%–

288Forsyth County, NCNC401,7187.7%–

289Gwinnett County, GAGA1,018,0997.7%–

290Anderson County, TNTN82,0667.7%–

291Columbia County, NYNY60,1687.7%–

292Marion County, ININ992,1967.7%–

293Virginia Beach, VAVA453,7377.7%–

294Waukesha County, WIWI417,2107.7%–

295Madison County, NYNY67,1207.7%–

296Forrest County, MSMS79,0347.7%–

297Teller County, COCO24,7567.7%–

298Sussex County, NJNJ148,0637.6%–

299Okaloosa County, FLFL221,8107.6%–

300Dawes County, NENE7,8587.6%–

301Beltrami County, MNMN47,0557.6%–

302Monterey County, CACA433,7297.6%–

303Strafford County, NHNH135,0437.6%–

304Phelps County, MOMO45,2477.6%–

305Palm Beach County, FLFL1,575,7267.6%–

306Salt Lake County, UTUT1,220,9167.6%–

307Oldham County, KYKY70,9867.6%–

308Napa County, CACA132,9497.6%–

309Eau Claire County, WIWI109,0337.6%–

310Cumberland County, PAPA277,2707.5%–

311Hancock County, MEME57,1717.5%–

312Lincoln County, MEME36,5957.5%–

313Clackamas County, OROR426,2807.5%–

314Jefferson County, KYKY795,2227.5%–

315Cole County, MOMO77,9087.5%–

316Talbot County, MDMD38,2387.5%–

317Dunn County, WIWI46,2237.5%–

318Crawford County, KSKS39,0087.5%–

319Madison County, IDID55,1727.5%–

320Ontario County, NYNY113,1307.5%–

321Randall County, TXTX152,3517.5%–

322Washington County, MNMN286,8957.5%–

323Shawnee County, KSKS178,6077.4%–

324Bryan County, OKOK51,3677.4%–

325Collier County, FLFL417,1317.4%–

326Oklahoma County, OKOK822,1257.4%–

327Harford County, MDMD266,4467.4%–

328Macon County, ALAL18,1327.4%–

329Warren County, NYNY65,0207.4%–

330San Luis Obispo County, CACA282,3677.4%–

331Ada County, IDID546,1417.4%–

332St. Lawrence County, NYNY105,4887.4%–

333Catron County, NMNM3,8277.4%–

334Sandoval County, NMNM159,5657.4%–

335Cuyahoga County, OHOH1,232,9257.4%–

336Cortland County, NYNY45,8507.4%–

337Grand County, COCO16,4967.3%–

338La Crosse County, WIWI121,3397.3%–

339San Juan County, COCO8137.3%–

340St. Tammany Parish, LALA279,1087.3%–

341Walker County, TXTX83,8427.3%–

342Houghton County, MIMI37,8427.3%–

343Socorro County, NMNM15,8387.3%–

344Putnam County, TNTN86,6127.3%–

345Chatham County, NCNC85,1117.3%–

346Greene County, MOMO309,2867.3%–

347Clark County, ARAR20,9387.3%–

348Burleigh County, NDND103,2517.3%–

349Burlington County, NJNJ481,4397.3%–

350Jeff Davis County, TXTX1,7117.3%–

351Grand Isle County, VTVT7,5117.3%–

352Polk County, IAIA516,5467.3%–

353Pontotoc County, OKOK38,5287.3%–

354Sullivan County, NYNY80,5867.2%–

355Blue Earth County, MNMN70,6347.2%–

356Guilford County, NCNC562,2347.2%–

357Mecklenburg County, NCNC1,233,3837.2%–

358Hendricks County, ININ193,5107.2%–

359Rice County, MNMN69,9397.2%–

360Bonneville County, IDID135,7717.2%–

361Kerr County, TXTX54,0377.2%–

362Maricopa County, AZAZ4,689,5587.1%–

363Wayne County, NENE10,0207.1%–

364Sacramento County, CACA1,618,4607.1%–

365Kings County, NYNY2,653,9637.1%–

366Shelby County, TNTN910,2267.1%–

367Pickens County, SCSC139,1987.1%–

368Faulkner County, ARAR133,9797.1%–

369Polk County, NCNC20,5337.1%–

370Hughes County, SDSD17,5707.1%–

371Fayette County, GAGA125,1567.1%–

372Manassas, VAVA44,3327.1%–

373Ohio County, WVWV40,4967.1%–

374Natchitoches Parish, LALA36,0897.1%–

375Lehigh County, PAPA384,3837.1%–

376Kittitas County, WAWA48,8037.1%–

377Tulsa County, OKOK698,7827.1%–

378Bexar County, TXTX2,160,0887.0%–

379Warren County, MSMS41,7597.0%–

380Plymouth County, MAMA546,8297.0%–

381Grand Traverse County, MIMI96,7297.0%–

382Baltimore, MDMD569,9977.0%–

383Delta County, TXTX5,5497.0%–

384Kane County, ILIL525,7577.0%–

385Cass County, NDND201,7947.0%–

386Woodford County, KYKY27,8837.0%–

387Montgomery County, OHOH539,5987.0%–

388Clinton County, NYNY78,1387.0%–

389Schoharie County, NYNY30,1767.0%–

390Monroe County, FLFL80,4067.0%–

391Galveston County, TXTX372,2077.0%–

392Nicollet County, MNMN34,2737.0%–

393Livingston County, NYNY61,4387.0%–

394Camden County, NJNJ535,7997.0%–

395Lake County, COCO7,5527.0%–

396Roanoke County, VAVA97,1506.9%–

397Carroll County, MDMD176,6776.9%–

398King County, TXTX1926.9%–

399Tioga County, NYNY47,4536.9%–

400Claiborne County, MSMS8,0586.9%–

401Platte County, MOMO114,4006.9%–

402Grant County, NMNM27,2526.9%–

403Lexington County, SCSC317,5886.9%–

404Washoe County, NVNV509,3866.9%–

405Rio Grande County, COCO11,0876.9%–

406Chemung County, NYNY80,4156.9%–

407Flagler County, FLFL140,3606.9%–

408Allen County, ININ402,3296.9%–

409Midland County, TXTX187,8556.9%–

410Jefferson County, ALAL665,7426.9%–

411Bartholomew County, ININ85,7296.8%–

412Queen Anne's County, MDMD54,4486.8%–

413Whatcom County, WAWA236,3926.8%–

414Sumter County, GAGA28,8016.8%–

415Waller County, TXTX69,8586.8%–

416Marquette County, MIMI68,0646.8%–

417Nodaway County, MOMO20,1746.8%–

418Sedgwick County, KSKS538,4336.8%–

419Taos County, NMNM34,5646.8%–

420Butler County, OHOH400,1286.8%–

421Providence County, RIRI678,1796.7%–

422Caledonia County, VTVT30,4146.7%–

423Iron County, UTUT67,1416.7%–

424Salem, VAVA25,8166.7%–

425Prince Edward County, VAVA22,3916.7%–

426Harvey County, KSKS33,5806.7%–

427Kendall County, TXTX53,2896.7%–

428Laramie County, WYWY102,9386.7%–

429Buncombe County, NCNC277,4176.7%–

430Staunton, VAVA26,8016.6%–

431Ellis County, KSKS29,0756.6%–

432Jackson County, MOMO732,9946.6%–

433Hancock County, ININ90,9696.6%–

434Kent County, RIRI173,4956.6%–

435Spokane County, WAWA558,3446.6%–

436Placer County, CACA442,0816.6%–

437Stafford County, VAVA170,8036.6%–

438Peoria County, ILIL178,5536.6%–

439Taylor County, TXTX150,0776.6%–

440Portage County, OHOH163,4046.6%–

441Tarrant County, TXTX2,248,4666.6%–

442Carroll County, NHNH52,7846.6%–

443Fauquier County, VAVA76,5036.6%–

444Ketchikan Gateway, AKAK13,5496.6%–

445Lafayette Parish, LALA257,9496.6%–

446Nevada County, CACA101,9116.5%–

447Comal County, TXTX209,1666.5%–

448Goochland County, VAVA29,1876.5%–

449Glynn County, GAGA87,5996.5%–

450Hillsborough County, FLFL1,574,1156.5%–

451Hood River County, OROR23,7206.5%–

452Pratt County, KSKS9,1176.5%–

453Southeast Fairbanks Census Area, AKAK7,2706.5%–

454Lowndes County, GAGA122,8676.5%–

455Emmet County, MIMI33,7756.5%–

456Jackson County, OKOK24,7646.5%–

457Livingston County, MIMI197,3156.5%–

458Vanderburgh County, ININ181,9956.5%–

459Rappahannock County, VAVA7,4396.5%–

460Martin County, FLFL166,2726.5%–

461Kent County, MIMI675,2326.5%–

462Beaverhead County, MTMT10,0436.5%–

463Sitka, AKAK8,3196.4%–

464Wicomico County, MDMD106,8996.4%–

465Matanuska-Susitna, AKAK118,6666.4%–

466Williamson County, TXTX752,8276.4%–

467Dakota County, MNMN457,7106.4%–

468Bannock County, IDID91,5916.4%–

469McHenry County, ILIL317,7516.4%–

470Brevard County, FLFL663,9826.4%–

471Pennington County, SDSD116,7926.4%–

472Essex County, NYNY36,4386.4%–

473Weld County, COCO378,4266.4%–

474Floyd County, ININ82,1536.4%–

475Davis County, UTUT381,2276.4%–

476Greeley County, KSKS1,1826.4%–

477Washington County, TNTN141,1996.4%–

478Hudson County, NJNJ735,0336.4%–

479Scott County, IAIA175,2596.4%–

480Broward County, FLFL2,013,3176.4%–

481Winona County, MNMN50,5236.4%–

482Ouachita Parish, LALA158,5426.3%–

483Hampden County, MAMA464,3386.3%–

484Hampton, VAVA137,3156.3%–

485Philadelphia County, PAPA1,574,2816.3%–

486Peach County, GAGA29,8776.3%–

487Douglas County, NVNV50,1116.3%–

488Oneida County, NYNY226,3926.3%–

489Poweshiek County, IAIA18,3686.3%–

490Berrien County, MIMI152,4446.3%–

491Hartley County, TXTX4,9046.3%–

492Henderson County, NCNC122,3756.3%–

493Lincoln County, OROR50,6366.3%–

494Penobscot County, MEME157,9676.3%–

495Greenville County, SCSC583,1256.3%–

496Chatham County, GAGA311,8556.3%–

497Dauphin County, PAPA293,3516.3%–

498Rutland County, VTVT59,6536.3%–

499Summit County, OHOH538,3766.3%–

500Mora County, NMNM4,0516.3%–

SHOWING 1–500 OF 3,122

Download CSV (full list, 3,122 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS

Frequently asked

Which county has the highest graduate degree?

Los Alamos County, New Mexico ranks #1 with 29.7% (1990 Decennial Census).

What are the top 5 counties by graduate degree?

Los Alamos County, New Mexico, Falls Church, Virginia, Arlington County, Virginia, Orange County, North Carolina, Tompkins County, New York.

How many counties are in this ranking?

3,122 counties qualify after filtering for population minimums and data availability. The ranking covers 1990 Decennial Census data.

How is graduate degree measured?

Share of adults 25+ with a graduate or professional degree. Source: US Census Bureau, 1990 Decennial Census.