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Knox County, Texas

Updated November 1, 2026 · Data: U.S. Census Bureau

Knox County, Texas has its county seat in Benjamin and FIPS code 48275. About 3,322 people live here, the 213th most populated of the 254 Texas counties.

County seat	Benjamin
FIPS code	48275 (Texas 48 + county 275) · all Texas FIPS codes
Population	3,322 (213th of 254)
Land area	850.6 sq mi (184th largest; + 4.9 sq mi water)
People per sq mi	3.9
Time zone	Central time (America/Chicago)
Median home value	$66,800
Median property tax paid	$1,244 a year (about 1.86% of the median home value: our calculation, not an official rate)
Official website	www.knoxcountytexas.org

What counties border Knox County?

Knox County shares a border with 4 counties:

What cities and towns are in Knox County?

1 places with 1,000+ people have residents here; together they hold about 44% of the county's population. The rest live in smaller communities and rural areas.

Place	Population	Residents in this county
Munday	1,478	100.0%

CDP = census-designated place: a named community with no city government.

What ZIP codes are in Knox County?

6 ZIP code areas with residents touch Knox County; the ones marked * cross into another county.

Check an exact address with the address lookup, look up a ZIP code, or see how to confirm your county with official records.

Sources: Census TIGER/Line 2024 (boundary, area, neighbors); ACS 2019-2023 5-year (population, home value, taxes paid); Wikidata, CC0 (seat, website); timezone-boundary-builder (time zone). Data as of November 1, 2026. Not affiliated with any government agency.

FAQ

Frequently asked questions

What is the county seat of Knox County, Texas?

Benjamin.

What is the FIPS code for Knox County?

48275. The first two digits (48) are Texas; the last three (275) are the county.

What counties border Knox County?

Baylor County, Foard County, Haskell County, King County.

How many people live in Knox County?

About 3,322 (ACS 2019-2023 5-year estimate), the 213th most of the 254 Texas counties.

What time zone is Knox County in?

Central time (America/Chicago).

What is the largest city in Knox County?

Munday, with about 1,478 people (counting all of it, including any part in another county).

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