St. Landry County GIS Maps
St. Landry County, Louisiana, has 82,540 residents and covers 923.9 square miles. The population declined 1% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for St. Landry County is 22097.
Opelousas is the county's largest population center. St. Landry County also includes 13 zip codes, 1 public school district and 31 municipalities. Those boundaries help explain why population, schools, and housing can look different from one part of the county to another. The map below shows how those county lines, zip codes, and school districts fit together, and the sections that follow use that same geography to show population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers and sample data. Paid packages add full layers, analytics and database files.
St. Landry County Trends
- Population
- 82,540▾
- Median Home Value
- $142,900▾
- K-12 Enrollment
- 10,982▾
County analytics dashboards with historical trends & projections included in package downloads.
Free starter access previews county maps, lightweight GIS, and sample data. Paid packages unlock full GIS layers, analytics, and database files.
St. Landry County Maps
The maps below show a few of the county map styles included in our downloads. County packages include map exports in JPEG, PNG, SVG, PDF and GeoTIFF formats plus more than 20 GIS layers for mapping, research and analysis. Available layers include zip codes, area codes, subdivisions, school districts, political boundaries, roads, water features, points of interest and more.
County packages also include historical county demographics, business intelligence, analytical dashboards, AI-ready prompts, markdown files and related reference data. Everything is organized to save hours of manual work collecting current data, cleaning it and joining it together. That makes it easier to move faster on analytics, due diligence, business planning and location research. Paid packages are built for commercial use, but some package contents include source-specific attribution or notice guidance. Review Licensing & Data Source Notices.
St. Landry County Population
St. Landry County had 82,540 residents in 2020. That was 1% lower than in 2010. St. Landry County had 5,160 fewer people in 2020 than it did in 2000, which points to a long-term population decline. The county is fairly spread out, with about 89 people per square mile. Some of the county's most populated postal areas include Opelousas, Arnaudville and Sunset.
Population Trend in St. Landry County LA
St. Landry County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
St. Landry County Zip Codes
St. Landry County has 13 zip codes. Some of the county's most populated zip codes include Opelousas (70570), Arnaudville (70512) and Sunset (70584). Opelousas is the largest zip by population, with about 38,746 residents or 47% of the county total. Together, the three largest zips account for about 68% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in St. Landry County LA
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 70570 | Opelousas | 38,746 | ▾ -0.6% |
| 70512 | Arnaudville | 10,146 | ▴ 3.7% |
| 70584 | Sunset | 7,471 | ▴ 1.5% |
| 70577 | Port Barre | 4,424 | ▾ -4.8% |
| 70589 | Washington | 3,464 | ▴ 5.5% |
| Download all zip code data | |||
St. Landry County Zip Code populations and trends per most recent census data.
St. Landry County Demographics
St. Landry County has a median age of 37.5, which is close to the Louisiana average. About 26.7% of residents are under 18, while 16.6% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 25 to 44 at about 29.5% of the population, which points to a solid working-age base. About 14.3% of adults have a bachelor's degree or higher, above the statewide figure of 26.6%. The county is majority White by population, with Hispanic, Asian, Black and multiracial residents making up a meaningful share of the local mix.
Key Demographics for St. Landry County LA
Median Age
37.5
Under 18
26.7%
Age 65+
16.6%
Bachelor's+
14.3%
St. Landry County School Districts
St. Landry County is served by 1 public school district with 10,982 students enrolled in 2024. Several larger districts account for a substantial share of students across the county map area. Those three districts account for about 100% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, but it is slightly lower than it was in 2017.
Largest School Districts by Enrollment in St. Landry County LA
| District | Enrollment | Share | Trend |
|---|---|---|---|
| St. Landry Parish School District | 10,982 | 100% | ▾ -8.3% |
| Download all school district data | |||
St. Landry County school district enrollment and trends per most recent NCES reporting data.
St. Landry County Housing & Real Estate
St. Landry County has a median home value of $142,900 and a median gross rent of $742. About 70% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Louisiana median, while rents come in below the state average. In March 2026, the median listing price was $190,625 and homes spent about 105 days on the market.
St. Landry County Housing Mix
St. Landry County housing mix: owner, renter and vacant units.
St. Landry County Housing Trends
St. Landry County median home value and rent trend (last 5 years).
Businesses in St. Landry County, LA
St. Landry County has 2,858 business listings across 480 categories. The largest categories in St. Landry County business listings are Churches & Religious Organizations (96, 3.4%), Gas Stations (61, 2.1%), and Convenience Stores (49, 1.7%). The full St. Landry County business listings dataset includes names, categories, addresses and contact details where available. St. Landry County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in St. Landry County, LA
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 96 | 3.4% |
| Gas Stations | 61 | 2.1% |
| Convenience Stores | 49 | 1.7% |
| Auto Repair | 47 | 1.6% |
| Discount Store | 47 | 1.6% |
| Beauty Salons | 46 | 1.6% |
| Medical Offices | 41 | 1.4% |
| Money Transfer Services | 35 | 1.2% |
| Baptist Church | 35 | 1.2% |
| Insurance Agencies | 35 | 1.2% |
St. Landry County Business Listings
| Business | Category | City |
|---|---|---|
| Tshirts.com | 3D Printing Service | Opelousas |
| Truthful Rehabilitation Center | Abuse And Addiction Treatment | Opelousas |
| Bloomfield Apartment Complex | Accommodation | Sunset |
| Vige Tujague Noel | Accountant | Eunice |
| Hidden Hills Lake | Active Life | Sunset |
| Cupid's Closet | Adult Entertainment | Opelousas |
| Daigle Troy | Advertising Agency | Opelousas |
| Tri-Parish Rice Drier | Agricultural Service | Eunice |
| Kibs Air Park | Airport | Sunset |
| Opelousas General Emergency Room | Ambulance And Ems Services | Opelousas |
| Download St. Landry County business listings | ||
St. Landry County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Get the Full St. Landry County Data Package
This page shows a preview of what's included in the St. Landry County data package. The full package gives you a ready-to-use county data system with GIS layers, historical data, maps, database files and planning tools that save hours of manual data gathering, cleanup and joins. Everything is organized to help you skip data wrangling and start analysis faster.
- 20+ GIS layers for zip codes, school districts, roads, water, boundaries and more
- Historical county demographics, housing, income and trend data
- ZIP code population files and school district enrollment history
- Database files, markdowns, AI-ready prompts and documentation
- Map exports in PNG, JPEG, PDF, SVG and GeoTIFF formats
- Offline-ready data explorer, map and analytics tools
Paid packages support commercial use, client work, and derived outputs. Some package contents may include source-specific attribution or provider notices. See Licensing & Data Source Notices.
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Nearby Counties
Browse county data pages for the counties that border St. Landry County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.