Local research workflow planning

Delaware county reference

3 counties and county equivalents in Delaware. Search names or FIPS codes, compare Census geography and keep the original sources with your work.

• Kent County

  Delaware · FIPS 10001

  194,786 residents · 2025 estimate

• New Castle County

  Delaware · FIPS 10003

  588,026 residents · 2025 estimate

• Sussex County

  Delaware · FIPS 10005

  277,140 residents · 2025 estimate

Use the county data

Use county codes to define the geographic boundaries of an agent research task. The sponsor should specify the sources, permitted actions and required review before a recurring task is commissioned.

A county page is not a commissioned agent deployment or a promise of local field service.

Geography: 2025 U.S. Census Gazetteer. Population: Vintage 2025 estimates, July 1, 2025. County equivalents include parishes, boroughs, independent cities and planning regions. Puerto Rico population is not supplied by this population file.