Williamson County, Texas Population 2022

Williamson County, Texas's estimated population is 646,285 with a growth rate of 2.97% in the past year according to the most recent United States census data. Williamson County, Texas is the 12th largest county in Texas. The 2010 Population was 422,679 and has seen a growth of 52.90% since this time.

Note: 2021 and 2022 data is projected
Year Population Growth Annual Growth Rate
18501,5680.00%
18604,5292,961188.84%
18706,3681,83940.60%
188015,1558,787137.99%
189025,90910,75470.96%
190038,07212,16346.95%
191042,2284,15610.92%
192042,9347061.67%
193044,1461,2122.82%
194041,698-2,448-5.55%
195038,853-2,845-6.82%
196035,044-3,809-9.80%
197037,3052,2616.45%
198076,52139,216105.12%
1990139,55163,03082.37%
2010422,679283,128202.88%
2011441,31318,6344.41%
2012459,94718,6344.22%
2013478,58118,6344.05%
2014497,21518,6343.89%
2015515,84918,6343.75%
2016534,48318,6343.61%
2017553,11718,6343.49%
2018571,75118,6343.37%
2019590,38518,6343.26%
2020609,01718,6323.16%
2021627,65118,6343.06%
2022646,28518,6342.97%
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Williamson County, Texas Population Growth

Population by Race

Race Population Percentage
White431,83775.70%
Black or African American36,5246.40%
American Indian and Alaska Native1,9480.34%
Asian40,5267.10%
Native Hawaiian and Other Pacific Islander7120.12%
Some Other Race17,2823.03%
Two or More Races41,6087.29%
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Williamson County, Texas Population by Race

Williamson County, Texas Population Pyramid 2022

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Williamson County, Texas Median Age

36.6


Total

35.8


Male

37.4


Female

Williamson County, Texas Adults

There are 424,492 adults, (69,632 of whom are seniors) in Williamson County, Texas.

Williamson County, Texas Age Dependency

Age Dependency Ratio

19.6

Old Age Dependency Ratio

41.1

Child Dependency Ratio

Williamson County, Texas Sex Ratio

Female

289,410

50.73%

Male

281,027

49.27%

Williamson County, Texas Population by Age

Williamson County, Texas Renter vs Owner Occupied by Household Type

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Williamson County, Texas Household Types

Type Owner Renter
Married81%19%
All68.2%31.8%
Male53.1%46.9%
Non Family50.8%49.2%
Female47.5%52.5%

68.2%

Rate of Home Ownership

Williamson County, Texas Households and Families

Type Count Average Size Owned
All188,1133.0168.2
Married109,6103.5581
Male7,8414.0653.1
Female18,6413.9247.5
Non Family52,0211.3950.8

3.53

Average Family Size

3.01

Average Household Size

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Williamson County, Texas Households by Type

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Education Attained Count Percentage
Less Than 9th Grade11,9623.15%
9th to 12th Grade13,5483.57%
High School Graduate76,86420.24%
Some College85,49322.52%
Associates Degree32,8388.65%
Bachelors Degree104,97627.65%
Graduate Degree54,00314.22%
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Williamson County, Texas Educational Attainment by Sex (over 25)

Williamson County, Texas Educational Attainment by Race

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Race Total High School Bachelors
Asian27,71825,57819,669
White238,720231,431106,647
Islander544544243
2+ Races18,98816,8446,956
Black23,97722,8318,309
Native American1,181973304
Hispanic80,32065,87520,371
Other Race11,3569,3812,337

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 70.96%.

Williamson County, Texas Educational Attainment by Race

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Name Average Male Female
Overall$49,332$59,375$39,767
Less Than 9th Grade$28,520$31,825$22,272
High School Graduate$33,830$40,097$27,810
Some College$44,533$54,405$35,374
Bachelors Degree$60,898$76,320$50,278
Graduate Degree$79,261$101,730$61,547

$49,332

Average Earnings

$59,375

Average Male

$39,767

Average Female

Williamson County, Texas Earnings by Educational Attainment

Williamson County, Texas Language by Age

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Williamson County, Texas Language

77.90% of Williamson County, Texas residents speak only English, while 22.10% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 13.88% of the population.

Williamson County, Texas Language

Williamson County, Texas Poverty by Race

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Name Total In Poverty Poverty Rate
Islander70823032.49%
Native1,88322011.68%
Black35,9624,17011.60%
Hispanic138,72311,9528.62%
Multiple41,2312,6816.50%
White330,30715,0874.57%
Asian40,4681,6654.11%
Other789NaN%

6.06%

Overall Poverty Rate

5.42%

Male Poverty Rate

6.68%

Female Poverty Rate

Poverty in Williamson County, Texas

The race most likely to be in poverty in Williamson County, Texas is Islander, with 32.49% below the poverty level.

The race least likely to be in poverty in Williamson County, Texas is Other, with NaN% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.54%. Among those working part-time, it was 9.97%, and for those that did not work, the poverty rate was 10.91%.

Williamson County, Texas Poverty

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Name Poverty
Less Than 9th Grade13.51%
High School8.38%
Some College5.34%
Bachelors or Greater2.51%

Williamson County, Texas Poverty Rate by Education

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Rate Poverty
Male Employed2.97%
Male Unemployed16.74%
Female Employed4.45%
Female Unemployed17.00%

Williamson County, Texas Poverty Rate by Employment Status and Sex

Williamson County, Texas Income by Household Type

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Name Median Mean
Households$90,834$109,558
Families$104,621$122,509
Married Families$117,256$134,956
Non Families$54,815$70,503
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Income by Household Type

Williamson County, Texas Marital Status

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Marriage Rates

53.4%

Overall Marriage Rate

54.9%

Male Marriage Rate

51.9%

Female Marriage Rate

Williamson County, Texas Married by Age and Sex

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Williamson County, Texas Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Williamson County, Texas Marital Status by Race

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Williamson County, Texas Marital Status

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36,823

Number of Veterans

Male Veterans

Female Veterans

War Veterans
Second Gulf War10,835
First Gulf War12,792
Vietnam10,878
Korea1,539
World War II578

Williamson County, Texas Veterans by War

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Age Group Veterans
18 to 344,578
35 to 5412,664
55 to 646,035
65 to 747,966
75+5,580

Williamson County, Texas Veterans by Age

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Name Veterans % of Total
White30,7509.37%
Black3,50412.85%
Native American1339.41%
Asian3441.17%
Islander5811.35%
Other Race5013.74%
2+ Races1,5336.49%
Hispanic5,0425.28%

Williamson County, Texas Veterans by Race

Williamson County, Texas Veterans by Education

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3.44%

Veteran Poverty Rate

23.19%

Veteran Disability Rate

Williamson County, Texas Veterans by Education

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69.6%

Labor Force Participation

66%

Employment Rate

5%

Unemployment Rate

Williamson County, Texas Employment by Age

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Williamson County, Texas Employment by Race

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Williamson County, Texas Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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51.20%

Born in Williamson County, Texas

86.98%

Native Born

13.02%

Foreign Born

7.14%

Non Citizen

5.87%

Naturalized

Place of Birth

86.98% of Williamson County, Texas residents were born in the United States, with 51.20% having been born in Texas. 7.14% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Williamson County, Texas Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources