Know your county. Explore with clarity.
Find the county for a U.S. address, explore county boundaries, look up FIPS codes, and compare local statistics. Clear tools, practical maps, and transparent data sources in one place.
Harris County, Texas
Explore a county profile with mapping and Census-based statistics.
A better starting point for every county question
Choose the tool that matches what you need. Go straight to an address lookup, find a ZIP-to-county match, search a code, or compare counties side by side.
What County Am I In?
Identify a county using your location or a complete U.S. street address.
Find your county →ZIP Code to County
Explore county matches for a U.S. ZIP code, including areas that cross county lines.
Search a ZIP code →County FIPS Lookup
Find official geographic identifiers by county name, state, or code.
Look up FIPS codes →Compare U.S. Counties
Review county-level population, housing, income, area, and other statistics.
Compare counties →Explore county maps in seven states
Browse complete county directories for Alabama, California, Florida, Michigan, Missouri, North Carolina and Texas. Search county names and FIPS codes, then open detailed geographic profiles where available.
Browse all seven state directoriesTexas
Browse the county list and explore detailed geographic profiles for major Texas counties.
Put county data side by side
Whether you are exploring a new area or conducting local research, compare two counties using consistent sources and clear data definitions.
Open county comparison- Compare population and population density
- Explore median household income and home value
- Review median age, poverty, and land area
- Examine data sources and reporting periods
Geography and statistics with context
Maps and county boundaries are sourced from U.S. Census Bureau geographic services. Selected county statistics draw on American Community Survey data, while interactive base maps may use OpenStreetMap tiles.
Geographic boundaries and statistical estimates have different update schedules. Our methodology explains how data is sourced and what to check before relying on a result.
Read our methodologyData behind the tools
Frequently asked questions
Quick explanations to help you choose the right map or county lookup tool.
How do I find which county I live in?
Open the What County Am I In? tool. You can enter a full U.S. street address or choose to share your location with your browser’s permission.
Can one ZIP code cover more than one county?
Yes. ZIP codes are designed for mail delivery, not as county boundaries. Our ZIP-to-county tool helps explore these matches, but address-based geocoding is generally better when you need to identify a specific property’s county.
What is a county FIPS code?
It is a five-digit county geographic identifier: the first two digits refer to the state and the final three to the county or county-equivalent. Look up codes using our County FIPS tool.
Is this an official government website?
No. County Map Pro is an independent reference website. For legal boundaries, property records, taxes, voting, or emergency-service decisions, verify information with the relevant official agency.
Ready to find your county?
Start with the county finder, then explore a county profile or compare local statistics when you need a closer look.