Grimes County GIS Maps

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Grimes County, Texas, has 29,268 residents across 26,787 parcels and covers 787.5 square miles. The population grew 10% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Grimes County is 48185.

Navasota is the county's largest population center. Grimes County also includes 7 zip codes, 5 public school districts and 11 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 parcel data, population, demographics, school enrollment and housing patterns in more detail.

Open the Interactive Parcel Viewer Open the Interactive Parcel Viewer

Maps, GIS layers, Parcels and sample data. Paid packages add full layers, analytics and database files.

Grimes County Trends

Population
29,268▴
Median Home Value
$226,600▴
K-12 Enrollment
7,348▴
Grimes County in Texas

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

Grimes 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.

Grimes County Parcels

Grimes County has 26,787 mapped parcels covering 498,282 acres. The median assessed value is $125,460. The median lot size is 1.78 acres. 6,894 parcels are 10 acres or larger. The records carry 16,947 distinct owner names. About 3% of parcels list an owner mailing address outside Texas. Owner names, mailing addresses, site addresses, assessed values and lot sizes are on nearly every parcel. Browse the interactive Grimes County Parcel viewer here.

Grimes County Parcel Data Coverage

Field Parcels Coverage
Parcel ID 26,787 100%
Owner name 26,764 99.9%
Owner mailing address 26,787 100%
Site address 26,787 100%
Land use code 7,664 28.6%
Land use description 0 0%
Assessed value 26,787 100%
Land value 26,787 100%
Improvement value 26,787 100%
Acreage 26,787 100%
Parcel boundary 26,787 100%
Download all Grimes County parcels.

Field coverage measured across all Grimes County parcel records.

Grimes County Population

Grimes County had 29,268 residents in 2020. That was 10% higher than in 2010. Grimes County added 5,716 people between 2000 and 2020, which points to steady long-term growth. Navasota is the largest city in the county, but it accounts for only about 26% of the total population. The county is fairly spread out, with about 37 people per square mile. Some of the county's most populated postal areas include Navasota, Plantersville and Bedias.

Population Trend in Grimes County TX

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

Grimes County Zip Codes

Grimes County has 7 zip codes. Some of the county's most populated zip codes include Navasota (77868), Plantersville (77363) and Bedias (77831). Navasota is the largest zip by population, with about 16,647 residents or 57% of the county total. Together, the three largest zips account for about 82% of all county residents based on 2020 population estimates.

Most Populated Zip Codes in Grimes County TX

ZIP Area Population Trend
77868 Navasota 16,647 ▴ 7.3%
77363 Plantersville 3,820 ▴ 16.9%
77831 Bedias 3,517 ▴ 2.7%
77861 Iola 2,850 ▴ 13.7%
77830 Anderson 2,836 ▴ 11.9%
Download all zip code data

Grimes County Zip Code populations and trends per most recent census data.

Grimes County Demographics

Grimes County has a median age of 40.5, which makes the county a little older than Texas overall. About 22.5% of residents are under 18, while 18.5% 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 30.7% of the population, which points to a solid working-age base. About 19.5% of adults have a bachelor's degree or higher, above the statewide figure of 33.1%. The county has a more diverse population mix, with no single race or ethnicity accounting for all of the local story.

Key Demographics for Grimes County TX

Median Age

40.5

Under 18

22.5%

Age 65+

18.5%

Bachelor's+

19.5%

Grimes County School Districts

Grimes County is served by 5 public school districts with 7,348 students enrolled in 2024. The largest districts on the county map are Navasota Independent, Madisonville Consolidated Independent and Anderson-Shiro Consolidated Independent. Those three districts account for about 88% of public school enrollment in the map area. Total enrollment has grown modestly since 2017 across the districts shown on the county map.

Largest School Districts by Enrollment in Grimes County TX

District Enrollment Share Trend
Navasota Independent School District 3,117 42.4% ▴ 2.9%
Madisonville Consolidated Independent School District 2,377 32.3% ▾ -0.6%
Anderson-Shiro Consolidated Independent School District 979 13.3% ▴ 1.3%
Iola Independent School District 626 8.5% ▴ 2.6%
Richards Independent School District 249 3.4% ▴ 6%
Download all school district data

Grimes County school district enrollment and trends per most recent NCES reporting data.

Grimes County Housing & Real Estate

Grimes County has a median home value of $226,600 and a median gross rent of $985. About 78% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Texas median, while rents come in below the state average. In March 2026, the median listing price was $423,000 and homes spent about 66 days on the market.

Grimes County Housing Mix

Grimes County housing mix: owner, renter and vacant units.

Grimes County Housing Trends

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

Businesses in Grimes County, TX

Grimes County has 1,172 business listings across 326 categories. The largest categories in Grimes County business listings are Churches & Religious Organizations (55, 4.7%), Farm (33, 2.8%), and Gas Stations (32, 2.7%). The full Grimes County business listings dataset includes names, categories, addresses and contact details where available. Grimes County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.

Top Business Categories in Grimes County, TX

Category Businesses Share
Churches & Religious Organizations 55 4.7%
Farm 33 2.8%
Gas Stations 32 2.7%
Convenience Stores 25 2.1%
Auto Repair 23 2.0%
Baptist Church 20 1.7%
Restaurants 19 1.6%
Campgrounds & RV Parks 17 1.5%
Event Planning 16 1.4%
Rv Park 16 1.4%

Grimes County Business Listings

Business Category City
Nexion Health Abuse And Addiction Treatment Navasota
Northwood Apartments Accommodation Navasota
Brewer, Eyeington, Patout, & Co., LLP: Navasota Accountant Navasota
Camp Allen Conference Center Active Life Navasota
United Ag & Turf Agricultural Service Navasota
Standley Feed & Seed Agriculture Iola
R Weaver Apiaries Agriculture Association Navasota
Navasota Municipal Airport Airport Navasota
Rail & Rye American Restaurants Navasota
Grimes County Animal Rescue Animal Rescue Service Anderson
Download Grimes County business listings

Grimes County business listings sourced from Overture Maps. Includes locations with a high level of confidence.

Grimes County Basemaps

Grimes 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 Grimes County Data Package

This page shows a preview of what's included in the Grimes 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 parcels, 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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