Cass County, North Dakota demographics
Cass County, North Dakota (county FIPS 38017) has a median household income of $75,555 (±$2,103) and a total population of 193,400 in the American Community Survey 5-year estimates for 2020-2024.
Margins of error are at the 90% confidence level. The figures describe 2020-2024 (dollars in 2024 dollars), not the present. 30 ZIP Code Tabulation Areas overlap the county (Census 2020).
Data as of Oct 22, 2026 (Olympus publication) · Markdown version
- Values are ACS 5-year estimates for 2020-2024 (dollars in 2024 dollars), not current figures.
- ZCTA-county overlaps come from the Census 2020 relationship file and use 2020 counties, by land area; Connecticut uses its legacy counties, not the planning regions in ACS 2022+.
ACS 5-year estimates, 2020-2024
Census American Community Survey 5-year estimates for 2020-2024, with 90% margins of error as published by the Census Bureau.
| Metric | Estimate | Margin of error (90%) | ACS table |
|---|---|---|---|
| Total population | 193,400 | none (controlled estimate) | B01003 |
| Median age | 32.8 years | ±0.2 years | B01002 |
| Households | 83,945 | ±742 | B11001 |
| Median household income (inflation-adjusted to the final ACS year) | $75,555 | ±$2,103 | B19013 |
| Median value of owner-occupied housing units | $298,000 | ±$7,012 | B25077 |
| Median gross rent | $958 | ±$17 | B25064 |
| Owner-occupied share of occupied housing units | 52% | none (derived from several estimates) | B25003 (derived) |
| Renter-occupied share of occupied housing units | 48% | none (derived from several estimates) | B25003 (derived) |
| High school graduate or higher (age 25+) | 95.9% | none (derived from several estimates) | B15003 (derived) |
| Bachelor's degree or higher (age 25+) | 42.7% | none (derived from several estimates) | B15003 (derived) |
| Share of people below the poverty level | 11% | none (derived from several estimates) | B17001 (derived) |
| Unemployment rate (civilian labor force) | 3% | none (derived from several estimates) | B23025 (derived) |
- Dollar values are in 2024 inflation-adjusted dollars.
- Percentages' margins of error are in percentage points (pp).
Geography
| Measure | Value |
|---|---|
| County FIPS | 38017 |
| Land area | 1,764.94 sq mi |
| Water area | 2.88 sq mi |
| Population density | 110 per sq mi of land |
| Geography vintage | 2024 Gazetteer |
ZIP codes (ZCTAs) in this county
ZCTAs that overlap the county in the Census 2020 ZCTA to county relationship file, largest share of the county's land first.
| ZCTA | Share of county land | Share of ZCTA land | County is the ZCTA's primary county |
|---|---|---|---|
| 58079 | 8.1% | 100% | Yes |
| 58064 | 7.4% | 74.4% | Yes |
| 58059 | 6.4% | 100% | Yes |
| 58011 | 6.3% | 100% | Yes |
| 58005 | 5.8% | 100% | Yes |
| 58052 | 4.9% | 55.9% | Yes |
| 58048 | 4.9% | 76.1% | Yes |
| 58036 | 4.7% | 100% | Yes |
| 58031 | 4.5% | 53.8% | Yes |
| 58027 | 4.2% | 41.2% | |
| 58012 | 4.2% | 100% | Yes |
| 58047 | 3.9% | 97.4% | Yes |
| 58051 | 3.8% | 59.3% | Yes |
| 58021 | 3.7% | 100% | Yes |
| 58071 | 3.4% | 56.1% | Yes |
| 58004 | 2.9% | 100% | Yes |
| 58006 | 2.8% | 100% | Yes |
| 58007 | 2.8% | 100% | Yes |
| 58029 | 2.5% | 100% | Yes |
| 58042 | 2.4% | 100% | Yes |
| 58078 | 2.3% | 100% | Yes |
| 58038 | 1.9% | 40.1% | |
| 58102 | 1.8% | 100% | Yes |
| 58035 | 1.7% | 33.7% | |
| 58104 | 1.6% | 100% | Yes |
| 58103 | 0.6% | 100% | Yes |
| 58046 | 0.2% | 1.7% | |
| 58002 | 0.2% | 100% | Yes |
| 58068 | 0.1% | 1.8% | |
| 58105 | 0% | 100% | Yes |
Sources
- American Community Survey 5-year estimates (Census Data API) — U.S. Census Bureau. ACS 5-year 2020-2024 (release acs5-2024:county), source date 2025-09-02. https://api.census.gov/data/2024/acs/acs5?get=NAME,B01003_001E,B01003_001M,B01002_001E,B01002_001M,B11001_001E,B11001_001M,B19013_001E,B19013_001M,B25077_001E,B25077_001M,B25064_001E,B25064_001M,B25003_001E,B25003_002E,B25003_003E,B15003_001E,B15003_017E,B15003_018E,B15003_019E,B15003_020E,B15003_021E,B15003_022E,B15003_023E,B15003_024E,B15003_025E,B17001_001E,B17001_002E,B23025_003E,B23025_005E&for=county:017&in=state:38
- Published by Olympus on Oct 22, 2026.
- Source data: U.S. Census Bureau. Works of the U.S. government are not subject to copyright in the United States.
- This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
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curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/counties/38017" -H "X-API-Key: $OLYMPUS_API_KEY"get_us_demographics {"county_fips":"38017"}