May we count your visit with Google Analytics? It uses cookies and sends visit data to Google. You can change this any time under Cookie choices. Privacy

Where am ILOCATED

Williamson County, Texas

Williamson County, Texas, has 752,827 residents (July 2025 estimate). Its county seat is Georgetown. It uses Central Time and covers 1,116 sq mi (2,890 km²) of land.

HoustonSan AntonioDallas
Williamson County in Texas
Round RockGeorgetownCedar ParkLeander
Williamson County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
752,827
Land area
1,116 sq mi (2,890 km²)
County seat or government
Georgetown
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$111,340 ± $1,581
Median home value
$447,000 ± $3,593
Median rent, with utilities
$1,796 ± $17
Homes lived in by their owners
66.4% ± 0.6 points
County type
County
Metro or micro area
Austin-Round Rock-San Marcos, TX metro areaCentral county
Water area
16 sq mi (41.5 km²)
State
Texas
County code (FIPS)
48491
Coordinates (central point)
30.649082, -97.605065
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Williamson County

Time zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 7864199,865 people
  2. 7861389,956 people
  3. 7866566,171 people
  4. 7866462,060 people
  5. 7868156,691 people
  6. 7862850,822 people
  7. 7862648,072 people
  8. 7863446,413 people
  9. 7875943,182 people
  10. 7871737,262 people
  11. 7872930,460 people
  12. 7862130,411 people
All 27
  1. 7872729,958 people
  2. 7863329,309 people
  3. 7875029,277 people
  4. 7872826,777 people
  5. 7864226,434 people
  6. 7657420,242 people
  7. 7653716,272 people
  8. 765274,918 people
  9. 765773,128 people
  10. 765112,702 people
  11. 765302,598 people
  12. 765781,762 people
  13. 786151,637 people
  14. 78674108 people
  15. 765730 people

27 ZIP Code areas overlap Williamson County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

School districts in Williamson County, largest first

  1. Round Rock Independent School District301,128 people
  2. Leander Independent School District233,956 people
  3. Pflugerville Independent School District185,578 people
  4. Georgetown Independent School District111,711 people
  5. Hutto Independent School District55,001 people
  6. Liberty Hill Independent School District36,087 people
  7. Burnet Consolidated Independent School District27,291 people
  8. Jarrell Independent School District22,454 people
  9. Taylor Independent School District18,325 people
  10. Lexington Independent School District6,209 people
  11. Florence Independent School District5,735 people
  12. Thrall Independent School District3,352 people
All 16
  1. Bartlett Independent School District3,216 people
  2. Thorndale Independent School District3,052 people
  3. Granger Independent School District1,927 people
  4. Coupland Independent School District1,809 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Austin, Texas (city)979,539 people
  2. Round Rock, Texas (city)127,786 people
  3. Georgetown, Texas (city)85,999 people
  4. Cedar Park, Texas (city)78,301 people
  5. Leander, Texas (city)74,067 people
  6. Pflugerville, Texas (city)65,971 people
  7. Hutto, Texas (city)35,483 people
  8. Brushy Creek, Texas (CDP)19,576 people
  9. Taylor, Texas (city)17,136 people
  10. Sonterra, Texas (CDP)10,563 people
  11. Liberty Hill, Texas (city)8,371 people
  12. Santa Rita Ranch, Texas (CDP)6,586 people
All 21
  1. Jarrell, Texas (city)3,295 people
  2. Bartlett, Texas (city)1,941 people
  3. Serenada, Texas (CDP)1,444 people
  4. Thorndale, Texas (city)1,113 people
  5. Florence, Texas (city)1,061 people
  6. Granger, Texas (city)1,046 people
  7. Thrall, Texas (city)861 people
  8. Coupland, Texas (city)491 people
  9. Weir, Texas (city)434 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Bell County, Texas28 mi north
  2. Travis County, Texas29 mi south
  3. Burnet County, Texas37 mi west
  4. Milam County, Texas38 mi east
  5. Bastrop County, Texas42 mi southeast
  6. Lee County, Texas44 mi southeast

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.