Market insights · North Dakota
Cass County, ND: growth, migration and housing
Cass County has 201,794 residents, up 9.1% since 2020 (+1.3% in the last year). In 2022–2023, 6,084 households moved in and 5,606 moved out (+478 net), while a net $26.9M of income left. Median household income is $75,555, the median home $298,000 and median rent $958 a month.
In North Dakota: 2nd of 53 counties for 5-year population growth · 7th of 47 counties for net in-migration (per resident) · 23rd of 53 counties for median household income · 4th of 53 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Cass County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Clay County, MN | 873 | $44.7M |
| Grand Forks County, ND | 308 | $16.3M |
| Burleigh County, ND | 214 | $12.1M |
| Otter Tail County, MN | 191 | $9.1M |
| Hennepin County, MN | 162 | $11.2M |
| Becker County, MN | 140 | $11.1M |
| Richland County, ND | 132 | $7.7M |
| Ward County, ND | 108 | $6.3M |
Where leavers went
Top counties by households leaving Cass County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Clay County, MN | 890 | $45.2M |
| Hennepin County, MN | 321 | $19.2M |
| Grand Forks County, ND | 202 | $11.7M |
| Burleigh County, ND | 141 | $9.4M |
| Maricopa County, AZ | 138 | $13.7M |
| Otter Tail County, MN | 133 | $12.3M |
| Becker County, MN | 127 | $9.4M |
| Richland County, ND | 111 | $8.9M |
BizyFi in Cass County
7 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse North Dakota companies.
← All North Dakota counties · National rankings
Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Migration counts are tax returns (roughly households) moving between U.S. counties; the IRS suppresses very small flows. Growth rates, per-1,000 figures, rent share and state ranks are BizyFi calculations. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.