Trigg County GIS Maps
Trigg County, Kentucky, has 14,061 residents and covers 441.6 square miles. The population declined 1.9% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Trigg County is 21221.
Cadiz is the county's largest population center. Trigg County also includes 1 zip code, 2 public school districts and 17 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.
Trigg County Trends
- Population
- 14,061▾
- Median Home Value
- $192,000▴
- K-12 Enrollment
- 1,954▾
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.
Trigg 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.
Trigg County Population
Trigg County had 14,061 residents in 2020. That was 1.9% lower than in 2010. Trigg County added 1,464 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 32 people per square mile. One of the county's most populated postal areas is Cadiz.
Population Trend in Trigg County KY
Trigg County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Trigg County Zip Codes
Trigg County has 1 zip codes. One of the county's most populated zip codes is Cadiz (42211). Cadiz is the largest zip by population, with about 13,224 residents or 94% of the county total. Together, the three largest zips account for about 94% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Trigg County KY
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 42211 | Cadiz | 13,224 | ▾ -1.5% |
| Download all zip code data | |||
Trigg County Zip Code populations and trends per most recent census data.
Trigg County Demographics
Trigg County has a median age of 46.6, which makes the county a little older than Kentucky overall. About 21.8% of residents are under 18, while 22.5% 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 26.3% of the population, which points to a solid working-age base. About 20.3% of adults have a bachelor's degree or higher, above the statewide figure of 27%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Trigg County KY
Median Age
46.6
Under 18
21.8%
Age 65+
22.5%
Bachelor's+
20.3%
Trigg County School Districts
Trigg County is served by 2 public school districts with 1,954 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 Trigg County KY
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Trigg County School District | 1,954 | 100% | ▾ -0.2% |
| Download all school district data | |||
Trigg County school district enrollment and trends per most recent NCES reporting data.
Trigg County Housing & Real Estate
Trigg County has a median home value of $192,000 and a median gross rent of $802. About 74% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Kentucky median, while rents come in below the state average. In March 2026, the median listing price was $351,750 and homes spent about 88 days on the market.
Trigg County Housing Mix
Trigg County housing mix: owner, renter and vacant units.
Trigg County Housing Trends
Trigg County median home value and rent trend (last 5 years).
Businesses in Trigg County, KY
Trigg County has 585 business listings across 236 categories. The largest categories in Trigg County business listings are Churches & Religious Organizations (31, 5.3%), Baptist Church (28, 4.8%), and Campgrounds & RV Parks (14, 2.4%). The full Trigg County business listings dataset includes names, categories, addresses and contact details where available. Trigg County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Trigg County, KY
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 31 | 5.3% |
| Baptist Church | 28 | 4.8% |
| Campgrounds & RV Parks | 14 | 2.4% |
| Parks & Recreation | 13 | 2.2% |
| Gas Stations | 12 | 2.1% |
| Lake | 12 | 2.1% |
| Antique Store | 8 | 1.4% |
| Real Estate Agents | 8 | 1.4% |
| Auto Repair | 8 | 1.4% |
| Discount Store | 8 | 1.4% |
Trigg County Business Listings
| Business | Category | City |
|---|---|---|
| Bayview Cottage | Accommodation | Cadiz |
| Solutions Bookkeeping and Tax Service | Accountant | Cadiz |
| Energy Lake | Active Life | Cadiz |
| Southern States - Hopkinsville Cooperative - Cadiz | Agricultural Cooperatives | Cadiz |
| Travelin' the Bluegrass | Agriculture | Cadiz |
| Trigg County Ambulance Services | Ambulance And Ems Services | Cadiz |
| Windows On The Water | American Restaurants | Cadiz |
| Hopson Livestock Company | Amusement Park | Cadiz |
| Purple Pig Antiques and Artisans | Antique Store | Cadiz |
| East Gate Apartments, Ltd. | Apartments | Cadiz |
| Download Trigg County business listings | ||
Trigg County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Trigg County Basemaps
Trigg County map and data packages include a set of useful basemaps to help you get started quickly. These include a custom light grey canvas, USGS topo, imagery and other reference layers that make it easier to build clear, meaningful county maps using the included GIS layers, your own data or both. Pre-rendered map tiles for the light grey basemap are included so you can use them offline or host them on your own CDN.
Get the Full Trigg County Data Package
This page shows a preview of what's included in the Trigg 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 Trigg County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.