Williamson County, TN
Demographics & Statistics
Updated: 2025-10-25
Updated: 2025-10-25
Life in Williamson County research summary. HomeSnacks has been researching the quality of life in Williamson County over the past eight years using Census data, FBI crime data, cost of living data, and other primary sources. Based on the most recently available data, we found the following about life in Williamson County:
The population in Williamson County is 254,609.
The median home value in Williamson County is $908,862.
The median income in Williamson County is $131,202.
The median rent in Williamson County is $1,895.
The unemployment rate in Williamson County is 2.0%.
The poverty rate in Williamson County is 4.5%.
The average high in Williamson County is 75.9° and there are 127.7 inches of rainfall annually.
The average high in Williamson County is 75.9°.
There are 86.01 nice days each year.
Expect an average of 127.7 inches of rain each year with 2.2 inches of snow.
There is an average of 5:02 hours of sun each day in Williamson County.
| Stat | Williamson County |
|---|---|
| Mean High | 75.9 |
| Nice Days | 86.01 |
| Rainfall | 127.7 |
| Snowfall | 2.2 |
| Sunny Hours | 5:02 |
The current population in Williamson County is 254,609. The population has increased 7.5% from 2019.
| Year | Population | % Change |
|---|---|---|
| 2023 | 242,386 | 4.3% |
| 2022 | 232,380 | 3.1% |
| 2021 | 225,389 | - |
Williamson County is 50.6% female with 128,874 female residents.
Williamson County is 49.4% male with 125,734 male residents.
| Gender | Williamson County | TN | USA |
|---|---|---|---|
| Female | 50.6% | 50.9% | 50.5% |
| Male | 49.4% | 49.1% | 49.5% |
Williamson County is:
81.5% White with 207,584 White residents.
3.8% African American with 9,670 African American residents.
0.0% American Indian with 80 American Indian residents.
5.2% Asian with 13,115 Asian residents.
0.0% Hawaiian with 0 Hawaiian residents.
0.5% Other with 1,269 Other residents.
3.2% Two Or More with 8,082 Two Or More residents.
5.8% Hispanic with 14,809 Hispanic residents.
| Race | Williamson County | TN | USA |
|---|---|---|---|
| White | 81.5% | 71.5% | 58.2% |
| African American | 3.8% | 15.7% | 12.0% |
| American Indian | 0.0% | 0.1% | 0.5% |
| Asian | 5.2% | 1.8% | 5.7% |
| Hawaiian | 0.0% | 0.1% | 0.2% |
| Other | 0.5% | 0.4% | 0.5% |
| Two Or More | 3.2% | 3.3% | 3.9% |
| Hispanic | 5.8% | 7.1% | 19.0% |
2.2% of households in Williamson County earn Less than $10,000.
1.3% of households in Williamson County earn $10,000 to $14,999.
3.3% of households in Williamson County earn $15,000 to $24,999.
3.3% of households in Williamson County earn $25,000 to $34,999.
6.1% of households in Williamson County earn $35,000 to $49,999.
11.3% of households in Williamson County earn $50,000 to $74,999.
10.2% of households in Williamson County earn $75,000 to $99,999.
19.1% of households in Williamson County earn $100,000 to $149,999.
14.2% of households in Williamson County earn $150,000 to $199,999.
29.2% of households in Williamson County earn $200,000 or more.
| Income | Williamson County | TN | USA |
|---|---|---|---|
| Less than $10,000 | 2.2% | 5.2% | 4.9% |
| $10,000 to $14,999 | 1.3% | 4.2% | 3.6% |
| $15,000 to $24,999 | 3.3% | 7.8% | 6.6% |
| $25,000 to $34,999 | 3.3% | 7.9% | 6.8% |
| $35,000 to $49,999 | 6.1% | 12.4% | 10.4% |
| $50,000 to $74,999 | 11.3% | 17.4% | 15.7% |
| $75,000 to $99,999 | 10.2% | 13.2% | 12.7% |
| $100,000 to $149,999 | 19.1% | 16.4% | 17.4% |
| $150,000 to $199,999 | 14.2% | 7.1% | 9.3% |
| $200,000 or more | 29.2% | 8.3% | 12.6% |
3.0% of adults in Williamson County completed < 9th grade.
2.0% of adults in Williamson County completed 9-12th grade.
13.0% of adults in Williamson County completed high school / ged.
14.0% of adults in Williamson County completed some college.
7.0% of adults in Williamson County completed associate's degree.
38.0% of adults in Williamson County completed bachelor's degree.
17.0% of adults in Williamson County completed master's degree.
4.0% of adults in Williamson County completed professional degree.
2.0% of adults in Williamson County completed doctorate degree.
| Education | Williamson County | TN | USA |
|---|---|---|---|
| < 9th Grade | 3% | 3% | 5% |
| 9-12th Grade | 2% | 7% | 6% |
| High School / GED | 13% | 31% | 26% |
| Some College | 14% | 20% | 19% |
| Associate's Degree | 7% | 8% | 9% |
| Bachelor's Degree | 38% | 19% | 21% |
| Master's Degree | 17% | 8% | 10% |
| Professional Degree | 4% | 2% | 2% |
| Doctorate Degree | 2% | 1% | 2% |
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