County
· North Dakota
Traill County
Traill County is a county in the U.S. state of North Dakota. As of the 2020 census, the population at 7,997, and was estimated to be 7,920 in 2025. The county seat is Hillsboro and the largest city is Mayville.
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Cities and towns 8
Townships 25
- Township of Belmont pop. 78
- Township of Bingham pop. 70
- Township of Blanchard pop. 74
- Township of Bloomfield pop. 138
- Township of Bohnsack pop. 75
- Township of Buxton pop. 107
- Township of Caledonia pop. 117
- Township of Eldorado pop. 115
- Township of Elm River pop. 28
- Township of Ervin pop. 175
- Township of Galesburg pop. 63
- Township of Garfield pop. 176
- Township of Greenfield pop. 86
- Township of Herberg pop. 55
- Township of Hillsboro pop. 110
- Township of Kelso pop. 78
- Township of Lindaas pop. 110
- Township of Mayville pop. 113
- Township of Morgan pop. 82
- Township of Norman pop. 41
- Township of Norway pop. 165
- Township of Roseville pop. 90
- Township of Stavanger pop. 106
- Township of Viking pop. 174
- Township of Wold pop. 128
Reference data (Census of Governments 2022)
- Census ID (PID6)
- 131862
- FIPS state
- 38
- FIPS county
- 097
- FIPS place
- 99097
- Census record name
- COUNTY OF TRAILL
- Mailing address
- PO BOX 429, HILLSBORO 58045