RANKING · 2020 CENSUS · 36 SHOWN OF 36

Largest households, Oregon counties · 2020

Oregon counties ranked by average household size (2023 ACS). This list covers the 36 counties in Oregon that qualify, ranked against each other statewide.

OregonAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDMost expensive homes Cheapest homes Highest median rent Lowest median rent Highest homeownership rate Highest renter share

YEAR2010 2020 2024

RANKPLACESTATEPOPAVERAGE HOUSEHOLD SIZEVS 2000

01Morrow County, OROR12,6022.78–

02Marion County, OROR355,7772.77–

03Umatilla County, OROR81,1192.72–

04Jefferson County, OROR25,7402.72–

05Polk County, OROR90,0372.70–

06Malheur County, OROR32,2612.67–

07Yamhill County, OROR110,0242.67–

08Washington County, OROR611,7082.64–

09Columbia County, OROR54,0912.60–

10Linn County, OROR132,8432.60–

11Clackamas County, OROR426,2802.59–

12Hood River County, OROR23,7202.50–

13Deschutes County, OROR213,0722.47–

14Clatsop County, OROR40,9262.43–

15Wasco County, OROR26,3102.43–

16Jackson County, OROR221,7952.40–

17Benton County, OROR97,7282.39–

18Lane County, OROR381,5842.39–

19Union County, OROR25,9002.38–

20Multnomah County, OROR795,3912.36–

21Crook County, OROR27,5642.36–

22Tillamook County, OROR27,3842.36–

23Josephine County, OROR87,8672.35–

24Klamath County, OROR70,2742.35–

25Douglas County, OROR111,9512.33–

26Sherman County, OROR2,0512.30–

27Coos County, OROR63,9922.27–

28Harney County, OROR7,3802.24–

29Lincoln County, OROR50,6362.23–

30Wallowa County, OROR7,5952.17–

31Baker County, OROR16,6582.16–

32Curry County, OROR22,6212.10–

33Wheeler County, OROR1,4722.09–

34Lake County, OROR8,1872.07–

35Gilliam County, OROR1,9712.05–

36Grant County, OROR7,0752.03–

SHOWING 1–36 OF 36

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES