Town · Louisiana
Grand Coteau, Louisiana
Grand Coteau, town, in St. Landry Parish, Louisiana. Grand Coteau had 759 residents on July 1, 2025 by the Census Bureau's estimate, down 2.1% since 2020; the 2020 Census counted 776 and the ACS 2020-2024 5-year estimates put it at 959 (±281). GEOID 2230760.
Residents, July 2025 estimate
759
Census Bureau estimate (no margin published)
2020 Census count: 776 · ACS 2020-2024: 959 ±281
Median household income
$34,730
±$34,114 (90% margin)
Louisiana: $60,756
Median home value
$117,500
±$85,595 (90% margin)
Louisiana: $216,500
Median gross rent
$678
±$68 (90% margin)
Louisiana: $1,064
Where is Grand Coteau and what county is it in?
Grand Coteau is a town in St. Landry Parish, Louisiana. It covers 2.4 square miles of land, 320 residents per square mile in 2020.
Grand Coteau is in the Opelousas, LA micropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Grand Coteau, and is it growing?
The Census Bureau estimates that 759 people lived in Grand Coteau on July 1, 2025, down 2.1% since 2020, a steeper fall than Louisiana's (−0.9%). The 2020 Census counted 776 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 959 (±281).
| Measure | Grand Coteau | St. Landry Parish | Change since 2015-2019 |
|---|---|---|---|
| Total population | 959 ±281 | 81,670 | no clear change |
| Households | 486 ±173 | 32,183 | +190 |
| Average household size | 1.89 ±0.35 | 2.50 | −0.85 |
| Housing units | 558 ±177 | 37,229 | no clear change |
Grand Coteau's population since 2000
From 1,040 in 2000 to 759 in 2025: down 27.0%. The 2000, 2010 and 2020 figures are census counts, each for Grand Coteau as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Grand Coteau?
The median resident of Grand Coteau is 54.9 years old; 19.9% are under 18 and 16.7% are 65 or older. The largest group is non-Hispanic Black residents at 69.9%, then non-Hispanic white residents at 28.9%.
| Measure | Grand Coteau | St. Landry Parish | Change since 2015-2019 |
|---|---|---|---|
| Median age | 54.9 ±18.0 | 37.8 | no clear change |
| Under 18 years | 19.9% ±10.1 pts | 26.6% | – |
| 65 years and over | 16.7% ±7.1 pts | 16.9% | – |
| Male | 52.8% ±9.6 pts | 48.8% | – |
| Hispanic or Latino (any race) | 0.4% ±1.6 pts | 3.1% | – |
| White alone, not Hispanic | 28.9% ±11.7 pts | 52.1% | no clear change |
| Black or African American alone, not Hispanic | 69.9% ±11.8 pts | 39.7% | no clear change |
| Asian alone, not Hispanic | 0.2% ±0.5 pts | 0.6% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±4.6 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±4.6 pts | 0.3% | – |
| Two or more races, not Hispanic | 0.6% ±1.3 pts | 3.3% | – |
| Some other race alone, not Hispanic | 0.0% ±4.6 pts | 0.9% | – |
| Born outside the United States | 1.8% ±2.0 pts | 1.6% | – |
| Speak a language other than English at home (age 5+) | 9.0% ±5.4 pts | 8.1% | – |
| Civilian veterans (age 18+) | 16.1% ±16.0 pts | 4.6% | – |
| With a disability | 14.1% ±8.3 pts | 16.2% | – |
| No health insurance coverage | 9.9% ±7.5 pts | 7.2% | – |
| High school graduate or higher (age 25+) | 60.8% ±14.5 pts | 81.4% | – |
| Bachelor's degree or higher (age 25+) | 20.5% ±9.5 pts | 14.9% | no clear change |
| Graduate or professional degree (age 25+) | 9.0% ±4.7 pts | 5.1% | – |
| Lived in the same house a year earlier | 97.3% ±2.7 pts | 92.1% | – |
| Moved from another state in the past year | 0.7% ±1.3 pts | 0.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Grand Coteau earn?
Grand Coteau's median household income is published as $34,730 with a margin of ±$34,114, too wide to rely on.
| Measure | Grand Coteau | St. Landry Parish | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $34,730 ±$34,114 | $44,462 | – |
| Mean household income | $43,867 ±$11,356 | $62,943 | – |
| Per capita income | $19,637 ±$4,752 | $25,412 | no clear change |
| People below the poverty line | 45.7% ±16.3 pts | 26.8% | no clear change |
| Children under 18 below the poverty line | 79.1% ±20.7 pts | 33.4% | +33.7 pts |
| Households receiving SNAP | 20.2% ±12.5 pts | 21.7% | – |
| Households with a computer | 68.1% ±24.1 pts | 89.6% | – |
| Households with a broadband subscription | 69.1% ±14.6 pts | 74.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Grand Coteau?
Owners occupy 34.4% of Grand Coteau's occupied homes and renters 65.6%. The median renter pays $678 a month including utilities.
| Measure | Grand Coteau | St. Landry Parish | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $117,500 ±$85,595 | $142,500 | – |
| Median gross rent | $678 ±$68 | $748 | no clear change |
| Renters paying 35% or more of income on rent | 29.7% ±22.2 pts | 41.2% | – |
| Median monthly owner costs, with a mortgage | $1,333 ±$360 | $1,228 | – |
| Owner-occupied homes | 34.4% ±16.8 pts | 70.1% | −24.0 pts |
| Renter-occupied homes | 65.6% ±16.8 pts | 29.9% | – |
| Housing units | 558 ±177 | 37,229 | no clear change |
| Homeowner vacancy rate | 0.0% ±22.9 pts | 1.8% | – |
| Rental vacancy rate | 8.3% ±7.9 pts | 4.8% | – |
| Single-family detached homes | 47.1% ±15.4 pts | 68.1% | – |
| Mobile homes | 15.6% ±10.5 pts | 20.5% | – |
| Built 2020 or later | 0.0% ±7.7 pts | 1.2% | – |
| Built 2010 to 2019 | 5.9% ±4.9 pts | 10.5% | – |
| Built 1939 or earlier | 8.2% ±5.3 pts | 3.0% | – |
| Households with no vehicle | 11.3% ±8.4 pts | 9.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Grand Coteau work and get to work?
83.5% of Grand Coteau's workers drive alone. The average trip to work takes 23.6 minutes.
| Measure | Grand Coteau | St. Landry Parish | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 40.3% ±9.8 pts | 52.8% | – |
| Unemployment rate | 5.5% ±5.9 pts | 6.3% | – |
| Drove alone to work | 83.5% ±10.4 pts | 78.1% | – |
| Carpooled | 7.4% ±8.0 pts | 10.9% | – |
| Public transportation | 0.0% ±13.5 pts | 0.4% | – |
| Walked | 0.6% ±1.3 pts | 1.7% | – |
| Worked from home | 8.4% ±7.6 pts | 7.3% | – |
| Mean travel time to work | 23.6 min ±6.0 | 29.8 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Grand Coteau?
No census tract lies mostly in Grand Coteau; 3 tracts reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9619St. Landry Parish | 2,784 | $57,125 |
| Tract 9617.01St. Landry Parish | 4,689 | $55,654 |
| Tract 9618.01St. Landry Parish | 5,844 | $72,083 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Grand Coteau) · Census block assignment files
How does Grand Coteau compare with other places in Louisiana?
By the Census Bureau's July 2025 estimates, Grand Coteau is the 11,455th-most populous of the 19,476 U.S. incorporated places that have one and the 178th-most populous of 304 in Louisiana.
Grand Coteau is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 178th | 304 |
Grand Coteau's figures with every place in Louisiana (CSV)
Every place in Louisiana, sortable · Compare Grand Coteau with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Grand Coteau?
24 of the 57 figures for Grand Coteau on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Grand Coteau are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Grand Coteau.