CITY · ND
What county is Fargo, ND in?
Fargo, ND is mostly in Cass County. County FIPS code 38017, population 196,362 (2023 estimate).
County details
- City
- Fargo, North Dakota
- Primary county
- Cass County
- FIPS code
- 38017
- County population
- 196,362
Some cities extend into more than one county. Fargo is placed in the county that contains its center. For a specific address, use the address lookup.
Questions
What county is Fargo in?
Fargo, ND is mostly in Cass County.
What is the county seat of Cass County?
County seats are not part of the data on this site. Check the county’s official website.
Can a city be in two counties?
Yes. Large cities such as Houston and Atlanta cross county lines. The address lookup shows the exact county for any street address.
Sources: U.S. Census Bureau geographic reference files; FCC Area API; Census Bureau Population Estimates, Vintage 2023. Last reviewed 2026-10-27.