St. Charles County GIS Maps

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St. Charles County, Louisiana, has 52,549 residents and covers 277.7 square miles. The population declined 0.4% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for St. Charles County is 22089.

Kenner is the county's largest population center. St. Charles County also includes 9 zip codes, 1 public school district and 15 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.

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St. Charles County Trends

Population
52,549▾
Median Home Value
$256,800▴
K-12 Enrollment
8,756▾
St. Charles County in Louisiana

County analytics dashboards with historical trends & projections included in package downloads.

St. Charles 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. Charles County Population

St. Charles County had 52,549 residents in 2020. That was 0.4% lower than in 2010. St. Charles County added 4,477 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 189 people per square mile. Some of the county's most populated postal areas include Luling, Destrehan and Saint Rose.

Population Trend in St. Charles County LA

St. Charles County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.

St. Charles County Zip Codes

St. Charles County has 9 zip codes. Some of the county's most populated zip codes include Luling (70070), Destrehan (70047) and Saint Rose (70087). Luling is the largest zip by population, with about 13,769 residents or 26% of the county total. Together, the three largest zips account for about 64% of all county residents based on 2020 population estimates.

Most Populated Zip Codes in St. Charles County LA

ZIP Area Population Trend
70070 Luling 13,769 ▴ 10.4%
70047 Destrehan 12,783 ▾ -1.7%
70087 Saint Rose 7,244 ▾ -10.8%
70030 Des Allemands 4,365 ▾ -4.8%
70057 Hahnville 4,201 ▾ -11%
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St. Charles County Zip Code populations and trends per most recent census data.

St. Charles County Demographics

St. Charles County has a median age of 39.1, which makes the county a little older than Louisiana overall. About 24.3% of residents are under 18, while 14.9% 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 32% of the population, which points to a solid working-age base. About 27.2% 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. Charles County LA

Median Age

39.1

Under 18

24.3%

Age 65+

14.9%

Bachelor's+

27.2%

St. Charles County School Districts

St. Charles County is served by 1 public school district with 8,756 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. Charles County LA

District Enrollment Share Trend
St. Charles Parish School District 8,756 100% ▾ -5.8%
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St. Charles County school district enrollment and trends per most recent NCES reporting data.

St. Charles County Housing & Real Estate

St. Charles County has a median home value of $256,800 and a median gross rent of $1,144. About 83% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run above the Louisiana median, while rents come in above the state average. In March 2026, the median listing price was $308,500 and homes spent about 80 days on the market.

St. Charles County Housing Mix

St. Charles County housing mix: owner, renter and vacant units.

St. Charles County Housing Trends

St. Charles County median home value and rent trend (last 5 years).

Businesses in St. Charles County, LA

St. Charles County has 1,517 business listings across 393 categories. The largest categories in St. Charles County business listings are Churches & Religious Organizations (45, 3.0%), Gas Stations (32, 2.1%), and Contractors (24, 1.6%). The full St. Charles County business listings dataset includes names, categories, addresses and contact details where available. St. Charles 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. Charles County, LA

Category Businesses Share
Churches & Religious Organizations 45 3.0%
Gas Stations 32 2.1%
Contractors 24 1.6%
Parks & Recreation 23 1.5%
Real Estate Agents 23 1.5%
Community & Nonprofits 22 1.5%
Baptist Church 20 1.3%
Industrial Equipment 20 1.3%
Grocery Stores 19 1.3%
Discount Store 18 1.2%

St. Charles County Business Listings

Business Category City
The Shadow of Saint Rose Accommodation St Rose
St. Charles Parish Community Center Active Life Luling
Creative Graphics Inc Advertising Agency Kenner
Bunge North America Agriculture Destrehan
St. Charles Airport (Louisiana) Airport Ama
O & A Renovations LLC Altering And Remodeling Contractor Des Allemands
River Region Rehab Therapy Alternative Medicine Destrehan
Arleaux's Public House American Restaurants St Rose
St. Charles Parish Animal Shelter Animal Shelters Luling
Paradis Appliance Repair Appliance Repair Service Paradis
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St. Charles County business listings sourced from Overture Maps. Includes locations with a high level of confidence.

Get the Full St. Charles County Data Package

This page shows a preview of what's included in the St. Charles 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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