COUNTY · 2020 ACS
St. Tammany Parish
Louisiana · 264,570 residents · 845 sq mi
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The short version
With 264,570 people, St. Tammany Parish is a county in Louisiana. Households here earn about 39% more than in Louisiana as a whole. 73,302 more people live here than in 2000. 77% of homes are owner-occupied. The foreign-born share is 4%. Home values have more than doubled since 2000, reaching $223,300.
At a glance
Wealthier
above the US median
US median: $66,278
Older
median age 41.1
US median: 38.8
Average education
34% hold a bachelor's degree
US average: 33%
Less affordable
home values up 28%, inflation adjusted
US median home: $265,253
Section 01
Population & growth
Land area
845 sq mi
Population, 1990 – 2024
2024272K
Age distribution, 2020
Under 55.6%(14,729)
5 to 96.4%(16,806)
10 to 147.2%(19,175)
15 to 196.7%(17,764)
20 to 245.1%(13,594)
25 to 3410.8%(28,690)
35 to 4412.9%(34,212)
45 to 5412.8%(33,754)
55 to 6414.1%(37,318)
65 to 7411.4%(30,115)
75 to 845.1%(13,594)
85 and over1.8%(4,819)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$70,730
−2%inflation adjusted, since 2000
from $47,883 in 2000
US average: $66,278
1990 – 2024
Households earning $100K+
47.0%
+8.0 ptssince 2009
from 39.0% in 2009
US average: 43.9%
Workforce by industry, 2020
Information11%
Wholesale trade8.9%
Retail trade6.2%
Other services6.2%
Finance & insurance5.5%
Public administration4.7%
Professional, scientific, technical4.6%
Transportation & warehousing3.7%
Agriculture, forestry, fishing2.6%
Manufacturing2.2%
Arts, entertainment, food1.7%
Education & health services0.9%
Construction0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03
Housing
$223,300
+28%inflation adjusted, since 2000
from $116,000 in 2000
US average: $265,253
1990 – 2024
3.2
Unchangedsince 2009
from 3.1 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity
2000
White, non-Hispanic85.3%(163,061)
Black9.8%(18,788)
Hispanic / Latino2.5%(4,737)
Asian0.7%(1,413)
Other0%
2020
White, non-Hispanic72.6%(192,144)
Black12.8%(33,969)
Hispanic / Latino7.9%(20,844)
Asian1.4%(3,814)
Other3.1%(8,218)
34
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry
Hispanic origin
Central American2%(5,235)
Mexican1.7%(4,397)
Honduran1%(2,682)
Spaniard0.5%(1,403)
South American0.5%(1,169)
Cuban0.4%(957)
Nicaraguan0.3%(729)
Salvadoran0.3%(712)
Puerto Rican0.3%(658)
Guatemalan0.2%(526)
Venezuelan0.1%(351)
Colombian0.1%(302)
+ 10 more hispanic origin groups with data
Costa Rican0.1%(193)
Ecuadorian0.1%(159)
Panamanian0.1%(136)
Uruguayan0%(85)
Argentine0%(83)
Bolivian0%(78)
Peruvian0%(57)
Chilean0%(52)
Dominican0%(17)
Paraguayan0%(2)
Asian origin
Vietnamese0.4%(970)
Asian Indian0.3%(863)
Filipino0.3%(839)
Chinese0.2%(568)
Japanese0.1%(353)
Nepalese0%(124)
Burmese0%(96)
Thai0%(62)
Korean0%(39)
Indonesian0%(10)
Bangladeshi0%(2)
Ancestry
French15.8%(40,860)
German15.3%(39,471)
Irish12.8%(33,172)
Italian10.2%(26,277)
English9.4%(24,304)
American7.6%(19,543)
Scottish1.8%(4,719)
French Canadian1.5%(3,815)
Scotch-Irish1.3%(3,240)
Polish1%(2,530)
Swedish0.9%(2,260)
Dutch0.7%(1,761)
+ 41 more ancestry groups with data
British0.6%(1,605)
Norwegian0.6%(1,493)
Subsaharan African0.4%(1,163)
Welsh0.4%(1,062)
Canadian0.3%(674)
Greek0.2%(601)
Portuguese0.2%(507)
Lithuanian0.2%(502)
Hungarian0.2%(484)
Russian0.2%(441)
Lebanese0.2%(435)
Danish0.2%(421)
Czech0.1%(385)
West Indian0.1%(376)
Brazilian0.1%(323)
Austrian0.1%(305)
Swiss0.1%(302)
Syrian0.1%(270)
Romanian0.1%(263)
Ukrainian0.1%(247)
Belgian0.1%(241)
Barbadian0.1%(240)
Australian0.1%(238)
Egyptian0.1%(217)
Croatian0.1%(190)
Finnish0.1%(179)
Slovak0.1%(156)
Armenian0.1%(144)
Latvian0%(73)
Ghanaian0%(71)
Moroccan0%(47)
Jamaican0%(39)
Iranian0%(35)
Ethiopian0%(30)
Haitian0%(29)
Jordanian0%(27)
Nigerian0%(19)
Arab0%(16)
Slovene0%(11)
Bulgarian0%(3)
Section 05
Education
High school or higher
90.5%
+6.6 ptssince 2000
from 83.9% in 2000
US average: 88.5%
Section 06
Commute & transportation
Section 07
Work & employment
Women 20-64 in the labor force
70.2%
US average: 73.3%
Section 08
People & community
Computer in household
93.1%
US average: 91.9%
Marital status (2024)
Men 15+
Never married30.7%(32,802)
Married57.3%(61,189)
Widowed2.5%(2,640)
Divorced9.5%(10,190)
Women 15+
Never married26.4%(29,965)
Married51.5%(58,521)
Widowed8.6%(9,767)
Divorced13.5%(15,331)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage
Direct-purchase
14.5%
US average: 13.7%
VA health care
2.5%
US average: 2.3%
Any private
68.5%
US average: 68.1%
Any public
36.6%
US average: 35.2%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2020
Gulf War (2001 or later)20.8%(3,278)
Gulf War (1990s)23.4%(3,687)
Vietnam era35.6%(5,613)
Korean War6.7%(1,056)
World War II1.7%(275)
Share of the 15,768 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to St. Tammany Parish
Sussex County
Pop 277,140
Atlantic County
Pop 278,657
Henry County
Pop 264,922
Baldwin County
Pop 267,761
Places similar to St. Tammany ParishHead to head
Compare St. Tammany Parish to nearby counties
ST. TAMMANY PARISH VS
Orleans Parish
Income$56,631−20%
Home value$315,700+41%
Population362,154+30%
SEE FULL COMPARISON →
ST. TAMMANY PARISH VS
Hancock County
Income$67,708−4%
Home value$224,200same
Population46,873−83%
SEE FULL COMPARISON →
ST. TAMMANY PARISH VS
Tangipahoa Parish
Income$56,760−20%
Home value$212,900−5%
Population141,346−49%
SEE FULL COMPARISON →
ST. TAMMANY PARISH VS
Washington Parish
Income$45,380−36%
Home value$155,700−30%
Population44,937−84%
SEE FULL COMPARISON →
Frequently asked
How many people live in St. Tammany Parish, Louisiana?
St. Tammany Parish, Louisiana has about 264,570 residents according to the 2020 American Community Survey.
What is the median household income in St. Tammany Parish, Louisiana?
The typical household in St. Tammany Parish, Louisiana earns about $70,730 a year. Half of households make more than that, and half make less.
Is St. Tammany Parish, Louisiana expensive?
In St. Tammany Parish, Louisiana, the median home is worth about $223,300, and the typical rent is about $1,143 a month.
How educated are people in St. Tammany Parish, Louisiana?
About 34.3% of adults age 25 and over in St. Tammany Parish, Louisiana hold a bachelor's degree or higher.
What is the poverty rate in St. Tammany Parish, Louisiana?
About 11.0% of people in St. Tammany Parish, Louisiana live below the federal poverty line.
Has St. Tammany Parish, Louisiana grown since 1990?
Yes, St. Tammany Parish, Louisiana has grown since 1990. The population has added about 120,062 residents, a change of about 83 percent over that period.
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59 census tracts (top 20 by population)
Census Tract 403.09Census Tract 404.01Census Tract 403.08Census Tract 407.10Census Tract 407.05Census Tract 408.07Census Tract 412.11Census Tract 402.04Census Tract 408.06Census Tract 403.04Census Tract 407.08Census Tract 401.05Census Tract 410.03Census Tract 412.13Census Tract 407.06Census Tract 401.03Census Tract 403.06Census Tract 412.09Census Tract 412.07Census Tract 402.0316 ZIP codes
ZIP 70433ZIP 70458ZIP 70461ZIP 70448ZIP 70471ZIP 70435ZIP 70460ZIP 70447ZIP 70452ZIP 70445ZIP 70437ZIP 70420ZIP 70431ZIP 70457ZIP 70464ZIP 70463Up the hierarchy
All counties in LouisianaDATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024