Collin County, Texas Map & Profile
Explore Collin County, Texas with an interactive county map, FIPS code, county seat, population, household income, home value, age, poverty, land area, and population density.
Collin County facts
Boundary and land area: U.S. Census Bureau TIGERweb current county geography. Demographic and housing figures: ACS 2020–2024 5-year estimates.
About Collin County, Texas
Collin County is part of the Dallas-Fort Worth region, with McKinney serving as the county seat. Its five-digit county FIPS code is 48085.
This profile combines current Census county geography with consistent ACS 5-year estimates so the figures can be compared with other CountyMapPro county profiles.
Useful Collin County comparisons
For North Texas context, compare Dallas County and Denton County. You can compare Collin and Dallas directly using the County Comparison Tool.
How to use this county profile
Use the map to understand the county boundary, then review the key statistics for population, income, housing, age, poverty, land area, and density. For a side-by-side comparison, open the County Comparison Tool and choose another county.
Data notes
ACS values are survey estimates and include margins of error. Income and home-value estimates are reported in the ACS release’s inflation-adjusted dollars. County geography can be updated on a different schedule from ACS demographic data.
Related tools
You can also use CountyMapPro to identify your current county, find counties from ZIP Codes, look up county FIPS codes, and compare counties side by side.