Grimes County, Texas
County seat: Anderson · Population 34,252 (2025) · 788 sq mi
Grimes County is the 88th most populous of Texas's 254 counties, with 34,252 people (2025 estimate). Its county seat is Anderson. It is part of the Central Texas region, one of the 12 Texas Comptroller economic regions. The map shows its 6 cities and towns and the 6 neighboring counties.
Grimes County facts
- County seat
- Anderson
- Population (2025 estimate)
- 34,252 +16.9% since 2020
- Land area
- 788 sq mi 200th largest of 254
- Water area
- 14 sq mi
- Population density
- 44 per sq mi
- Established
- 1846
- Named after
- Jesse Grimes American politician
- Largest city
- Navasota 9,904 in the county
- Median household income
- $69,803
- Cities and towns
- 6 plus 3 CDPs
- ZIP codes
- 12
- Time zone
- Central
- FIPS code
- 48185
Cities and towns in Grimes County
Grimes County has 6 incorporated cities, towns and villages. Populations count the people living inside Grimes County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Navasota | City | 9,904 | Brazos County |
| Plantersville | City | 520 | |
| Bedias | City | 411 | |
| Iola | City | 354 | |
| Anderson (county seat) | City | 217 | |
| Todd Mission | City | 126 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Pinebrook | 307 | |
| Shiro | 159 | |
| Richards | 67 |
ZIP codes in Grimes County
12 ZIP codes reach into Grimes County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 77316 also Montgomery County
- 77356 also Montgomery County
- 77363 also Waller County
- 77484 also Waller and Harris counties
- 77830
- 77831 also Walker and Madison counties
- 77861
- 77868 also Brazos, Washington and Waller counties
- 77872 also Madison County
- 77873 also Montgomery and Walker counties
- 77875
- 77876
Population of Grimes County, 2020–2025
Grimes County grew by 4,948 people (+16.9%) between April 2020 and July 2025: 46 more births than deaths and a net gain of 4,851 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 29,443 |
| 2021 | 30,160 |
| 2022 | 31,163 |
| 2023 | 32,582 |
| 2024 | 33,343 |
| 2025 | 34,252 |
Neighboring counties
- Brazos County northwest · 249,088 people
- Montgomery County southeast · 781,194 people
- Madison County north · 14,226 people
- Waller County south · 69,858 people
- Walker County northeast · 83,842 people
- Washington County southwest · 38,288 people
Printable Grimes County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (173 KB)
- PNG (2400 px) (115 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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