Knox County, Texas Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 213th-largest in Texas

The population of Knox County, Texas is 3,322 as of the 2023 American Community Survey, making it the 213th-largest county in Texas. The median household income is $56,304, the median home value is $66,800, and the median age is 40.5.

The population of Knox County has declined 12.6% since 2010 (3,723 → 3,255), a -0.95% annualized rate.

Knox County within Texas · Source: US Census TIGER/Line via us-atlas

3,322

Population

-0.95%

Annual growth

People / sq mi

$56,304

Median Income

$66,800

Median Home Value

Knox County covers 851 sq mi of land at 3.9 people per square mile.

About Knox County, TX

Housing cost is the defining feature of Knox County: the median home is valued at $66,800. Knox County is a county in Texas with a population of 3,322.

Median household income is $56,304, below the US median of $78,538. About 8.0% of residents live below the federal poverty level, below the national 12.4%. Housing costs are among the lowest of comparable places: a median home value of $66,800, with typical rent around $661.

Degree attainment is on the lower side for US counties: 15.6% of adults hold a bachelor’s degree, below the national 35.0%. Just 4.0% of workers are home-based, below the national 14.0%, and the average commute runs about 16 minutes each way.

Knox County Population History (2010-2024)

The county of Knox County had a population of 3,723 in 2010 and 3,255 in 2024, a -12.6% growth over 14 years. The peak was 3,797 in 2014. Average annual growth rate: -0.93%.

Knox County population, 2010–2024 · Source: U.S. Census Bureau — decennial census & Population Estimates

3,255

Population (2024)

3,723

Population (2010)

3,797

Peak (2014)

-0.93%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	3,723	-	-	estimate
2011	3,721	-2	-0.05%	estimate
2012	3,729	+8	+0.21%	estimate
2013	3,719	-10	-0.27%	estimate
2014	3,797	+78	+2.10%	estimate
2015	3,790	-7	-0.18%	estimate
2016	3,729	-61	-1.61%	estimate
2017	3,669	-60	-1.61%	estimate
2018	3,651	-18	-0.49%	estimate
2019	3,663	+12	+0.33%	estimate
2020	3,351	-312	-8.52%	estimate
2021	3,325	-26	-0.78%	estimate
2022	3,288	-37	-1.11%	estimate
2023	3,318	+30	+0.91%	estimate
2024	3,255	-63	-1.90%	estimate

Race & Ethnicity

White	71.5%
Black or African American	4.0%
Asian	0.0%
Hispanic or Latino (any race)	1.1%
Two or More Races	0.0%

Age & Sex

40.5

Median Age

50.7%

Female

49.3%

Male

18.7%

Age 65+

Age Distribution

Under 5

5.3%

5–9

10.3%

10–14

6.2%

15–19

5.1%

20–24

3.6%

25–34

10.6%

35–44

13.8%

45–54

11.3%

55–59

7.6%

60–64

7.6%

65–74

10.0%

75–84

5.8%

85+

2.9%

Children (under 15): 21.8% · Seniors (65+): 18.7%

Income & Poverty

Median household income	$56,304$-19,988 vs state
Mean household income	$71,418
Per-capita income	$26,698
Poverty rate	8.0%-2.5% vs state
Unemployment rate	0.7%
Employment-to-population	57.3%

Top Industries by Employment

Professional & business services

25.2%

Agriculture

16.1%

Construction

9.7%

Retail trade

9.2%

Finance & real estate

4.6%

Information

4.5%

Public administration

4.2%

Education & health care

3.3%

The largest employment sector in Knox County is professional & business services, accounting for 25.2% of workers.

How residents commute

0.0%

Drive alone

1.2%

Carpool

77.9%

Public transit

4.0%

Work from home

16.2 min

Avg commute

Housing

$66,800$-193,600 vs state

Median home value

$661

Median rent

78.1%

Homeownership rate

1,802

Total housing units

69.7%

Occupied

30.3%

Vacant

21.9%

Renter-occupied

Social & access

82.0%

With health insurance

92.0%

With broadband internet

13.5%

Foreign-born

4.8%

Veterans (18+)

17.3%

With a disability

76.9%

Speak language other than English at home

Education

85.2%

High School+

15.6%

Bachelor's+

Largest cities in Texas

Houston (2,300,419)San Antonio (1,458,954)Dallas (1,299,553)Austin (967,862)Fort Worth (941,311)El Paso (678,147)Arlington (394,769)Corpus Christi (317,383)Plano (287,339)Lubbock (261,078)All Texas cities →

Other counties in Texas

Harris County (4,758,579)Dallas County (2,603,816)Tarrant County (2,135,743)Bexar County (2,037,344)Travis County (1,307,625)Collin County (1,116,601)Denton County (945,644)Hidalgo County (880,921)El Paso County (866,275)Fort Bend County (859,721)All Texas counties →

Part of Texas

Texas demographic profile All Texas data →

Metro areas in Texas

Dallas (7,807,555)Houston (7,274,714)San Antonio (2,612,802)Austin (2,357,497)McAllen (880,921)El Paso (869,606)Killeen (485,850)Corpus Christi (446,797)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Frequently Asked Questions

Knox County, Texas has a population of 3,322 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 213th-largest county in Texas. Population density is 4 people per square mile.

The population of Knox County has declined 12.6% since 2010 (3,723 → 3,255), a -0.95% annualized rate.

The median household income in Knox County, Texas is $56,304, with mean (average) household income of $71,418 and per-capita income of $26,698. 8.0% of residents live below the federal poverty level.

In Knox County, the largest racial and ethnic groups are White (71.5%), Black or African American (4.0%), Hispanic or Latino (1.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Knox County, Texas is 40.5 years. Residents are 50.7% female and 49.3% male.

The median home value in Knox County is $66,800 and median monthly rent is $661. 78.1% of occupied housing units are owner-occupied. The county has 1,802 total housing units, 30.3% of which are vacant.

The largest employment sector in Knox County, Texas is professional, scientific, and management services, employing 25.2% of workers. The unemployment rate is 0.7%.

Houston is among the largest cities associated with Knox County, Texas, with a population of 2,300,419.