COUNTY
St. Tammany Parish
Louisiana · 279,108 residents (2025 est.) · 845.281 sq mi
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Part of the Slidell metro area
The short version
St. Tammany Parish has roughly average household income, with a median household income of $81,202. Population has grown 42% since 2000. Median home value has more than doubled since 2000, reaching $284,000. It ranks in the top 5% of US counties for household income. Households here earn about 34% more than the Louisiana median.
At a glance
Average income
near the US median
US median: $82,259
Mid-age
median age 40.5
US median: 38.9
Average education
38% hold a bachelor's degree
US average: 36%
Less affordable
home values up 34%, inflation adjusted
US median home: $376,019
Section 01
Population & growth
PEP 2025 EST:279,108 residents (Census Bureau Vintage 2025, released March 2026)
Population, 1990 – 2024
2024272K
Age distribution, 2024
Under 55.7%(15,579)
5 to 97%(19,050)
10 to 146.4%(17,387)
15 to 196.7%(18,295)
20 to 245.4%(14,728)
25 to 3411.2%(30,474)
35 to 4413.3%(36,299)
45 to 5412.4%(33,816)
55 to 6413.4%(36,555)
65 to 7411.3%(30,693)
75 to 845.3%(14,372)
85 and over1.9%(5,173)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$81,202
−7%inflation adjusted, since 2000
from $47,883 in 2000
US average: $82,259
1990 – 2024
Households earning $100K+
53.8%
+14.8 ptssince 2009
from 39.0% in 2009
US average: 53.3%
Workforce by industry, 2024
Information10.1%
Wholesale trade8.1%
Other services7.2%
Finance & insurance6.4%
Retail trade5.7%
Public administration5.6%
Professional, scientific, technical5.3%
Transportation & warehousing3.2%
Agriculture, forestry, fishing2.1%
Manufacturing1.7%
Arts, entertainment, food1.6%
Education & health services1.1%
Construction0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03
Housing
$284,000
+34%inflation adjusted, since 2000
from $116,000 in 2000
US average: $376,019
1990 – 2024
3.5
+11%since 2009
from 3.1 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
31
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in St. Tammany Parish on RentDataNow
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%
2024
White, non-Hispanic72.4%(197,214)
Black12%(32,750)
Hispanic / Latino8.2%(22,407)
Asian1.3%(3,643)
Other6%(16,407)
56
+43%since 2009
from 39 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
31
−8%since 2020
from 34 in 2020
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 American2.8%(7,748)
Mexican2%(5,537)
Honduran1.8%(4,921)
Spaniard0.8%(2,205)
Puerto Rican0.6%(1,605)
South American0.3%(937)
Guatemalan0.3%(931)
Cuban0.2%(673)
Salvadoran0.2%(662)
Nicaraguan0.2%(606)
Colombian0.2%(435)
Dominican0.1%(211)
+ 9 more hispanic origin groups with data
Panamanian0.1%(186)
Costa Rican0.1%(156)
Peruvian0.1%(151)
Venezuelan0%(119)
Ecuadorian0%(114)
Argentine0%(97)
Chilean0%(13)
Bolivian0%(5)
Paraguayan0%(3)
Asian origin
Vietnamese0.5%(1,411)
Asian Indian0.2%(638)
Chinese0.2%(507)
Filipino0.1%(261)
Burmese0%(128)
Japanese0%(114)
Pakistani0%(103)
Nepalese0%(92)
Thai0%(78)
Korean0%(67)
Taiwanese0%(54)
Laotian0%(44)
+ 3 more asian origin groups with data
Ancestry
German14.9%(40,668)
French14.1%(38,458)
Irish13.1%(35,773)
English10.8%(29,399)
Italian10.3%(28,133)
American9.6%(26,266)
Scottish1.6%(4,223)
French Canadian1.5%(3,983)
Polish0.9%(2,374)
Scotch-Irish0.8%(2,265)
West Indian0.6%(1,551)
Arab0.5%(1,408)
+ 44 more ancestry groups with data
Norwegian0.5%(1,377)
Welsh0.5%(1,254)
British0.4%(1,179)
Dutch0.4%(1,156)
Swedish0.4%(1,045)
Subsaharan African0.3%(777)
Hungarian0.2%(633)
Trinidadian & Tobagonian0.2%(551)
Russian0.2%(529)
Lebanese0.2%(511)
Danish0.2%(511)
Austrian0.2%(505)
Haitian0.2%(457)
Greek0.2%(441)
Croatian0.2%(413)
Canadian0.1%(397)
Lithuanian0.1%(371)
Portuguese0.1%(348)
Syrian0.1%(322)
Nigerian0.1%(312)
Swiss0.1%(255)
Turkish0.1%(252)
Czech0.1%(230)
Ukrainian0.1%(202)
Slovak0.1%(173)
Israeli0.1%(170)
Belgian0.1%(166)
Brazilian0.1%(159)
Australian0.1%(154)
Finnish0%(127)
Iranian0%(126)
Barbadian0%(96)
Romanian0%(76)
Palestinian0%(75)
Jordanian0%(73)
Bulgarian0%(60)
Slovene0%(58)
Moroccan0%(39)
Armenian0%(37)
Egyptian0%(36)
Serbian0%(34)
Latvian0%(28)
Kenyan0%(18)
Jamaican0%(3)
Section 05
Education
High school or higher
92.0%
+8.1 ptssince 2000
from 83.9% in 2000
US average: 89.6%
Section 06
Commute & transportation
Section 07
Work & employment
Section 08
People & community
Marital status
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
Drill deeper
Places similar to St. Tammany Parish
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Pop 277,140
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Pop 278,657
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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$56,631−30%
Home value$315,700+11%
Population362,154+30%
SEE FULL COMPARISON →
ST. TAMMANY PARISH VS
Hancock County
Income$67,708−17%
Home value$224,200−21%
Population46,873−83%
SEE FULL COMPARISON →
ST. TAMMANY PARISH VS
Tangipahoa Parish
Income$56,760−30%
Home value$212,900−25%
Population141,346−49%
SEE FULL COMPARISON →
ST. TAMMANY PARISH VS
Washington Parish
Income$45,380−44%
Home value$155,700−45%
Population44,937−84%
SEE FULL COMPARISON →
Frequently asked
How many people live in St. Tammany Parish, Louisiana?
St. Tammany Parish, Louisiana has about 272,421 residents according to the 2024 American Community Survey.
What is the median household income in St. Tammany Parish, Louisiana?
The typical household in St. Tammany Parish, Louisiana earns about $81,202 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 $284,000, and the typical rent is about $1,332 a month.
How educated are people in St. Tammany Parish, Louisiana?
About 37.7% 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 11.4% 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 127,913 residents, a change of about 89 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