What county is Prosper, TX in?
Updated · Data: U.S. Census Bureau
Prosper, Texas is in 2 counties. Most residents (79.5%) live in the Collin County part; the rest live in Denton County.
Which counties do Prosper residents live in?
| County | Share of residents | Chart |
|---|---|---|
| Collin County | 79.5% (27,484 people) | |
| Denton County | 20.5% (7,083 people) |
How is Prosper's land split between counties?
| County | Share of land area | Chart |
|---|---|---|
| Collin County | 72.0% | |
| Denton County | 28.0% |
Inside Prosper, the county depends on the address: check your address privately. See all Texas cities in more than one county or look up another city.
Prosper at a glance
What ZIP codes are in Prosper?
1 ZIP codes use the name Prosper 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) |
|---|---|---|
| 75078 | Prosper | Collin County 70%, Denton County 30% |
About Collin County
County seat: McKinney. FIPS code 48085. Population 1,116,601. All Collin County facts.
Towns near Prosper
- Savannah: 5.6 mi away, Denton County
- Celina: 5.7 mi away, Collin County
- Frisco: 6.0 mi away, Collin County
- Little Elm: 7.1 mi away, Denton County
- Paloma Creek South: 7.3 mi away, Denton County
- Paloma Creek: 7.3 mi away, Denton County
Prosper has about 34,567 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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