What county is Lewisville, TX in?
Updated · Data: U.S. Census Bureau
Lewisville, Texas is in 2 counties. Most residents (98.9%) live in the Denton County part; the rest live in Dallas County.
Which counties do Lewisville residents live in?
| County | Share of residents | Chart |
|---|---|---|
| Denton County | 98.9% (126,919 people) | |
| Dallas County | 1.1% (1,394 people) |
How is Lewisville's land split between counties?
| County | Share of land area | Chart |
|---|---|---|
| Denton County | 99.4% | |
| Dallas County | 0.6% |
Inside Lewisville, the county depends on the address: check your address privately. See all Texas cities in more than one county or look up another city.
Lewisville at a glance
What ZIP codes are in Lewisville?
5 ZIP codes use the name Lewisville or are centered in it. Shares are of each ZIP's land; a ZIP named after a town can reach beyond its city limits.
| ZIP | Post office name | County (land share) |
|---|---|---|
| 75029 | Lewisville | Denton County |
| 75056 | The Colony | Denton County |
| 75057 | Lewisville | Denton County |
| 75067 | Lewisville | Denton County 96%, Dallas County 4% |
| 75077 | Lewisville | Denton County |
About Denton County
County seat: Denton. FIPS code 48121. Population 945,644. All Denton County facts.
Towns near Lewisville
- The Colony: 4.9 mi away, Denton County
- Hickory Creek: 5.4 mi away, Denton County
- Highland Village: 5.7 mi away, Denton County
- Lake Dallas: 6.0 mi away, Denton County
- Carrollton: 6.1 mi away, Denton County
- Coppell: 6.1 mi away, Dallas County
Lewisville has about 128,313 people. It is an incorporated city or town.
Sources: ACS 2019-2023 5-year (residents by county, table B01003); Census TIGER/Line 2024 and Gazetteer 2024 (land, location); Census 2020 ZCTA file and GeoNames (ZIP codes). Data as of November 1, 2026. Not affiliated with any government agency.
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