City · North Dakota
Arthur, North Dakota
Arthur, city, in Cass County, North Dakota. Arthur had 328 residents on July 1, 2025 by the Census Bureau's estimate, up 0.3% since 2020; the 2020 Census counted 328 and the ACS 2020-2024 5-year estimates put it at 392 (±69). GEOID 3803300.
Residents, July 2025 estimate
328
Census Bureau estimate (no margin published)
2020 Census count: 328 · ACS 2020-2024: 392 ±69
Median household income
$88,393
±$7,382 (90% margin)
North Dakota: $76,657
Median home value
$217,900
±$55,521 (90% margin)
North Dakota: $249,900
Median gross rent
$645
±$17 (90% margin)
North Dakota: $954
Where is Arthur and what county is it in?
Arthur is a city in Cass County, North Dakota. It covers 1.5 square miles of land, 214 residents per square mile in 2020.
Arthur is in the Fargo, ND-MN metropolitan statistical area, which takes in 2 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Arthur, and is it growing?
The Census Bureau estimates that 328 people lived in Arthur on July 1, 2025, up 0.3% since 2020, slower than North Dakota (+2.6%). The 2020 Census counted 328 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 392 (±69).
| Measure | Arthur | Cass County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 392 ±69 | 193,400 | no clear change |
| Households | 158 ±32 | 83,945 | no clear change |
| Average household size | 2.32 ±0.27 | 2.23 | no clear change |
| Housing units | 165 ±34 | 89,038 | no clear change |
Arthur's population since 2000
From 402 in 2000 to 328 in 2025: down 18.4%. The 2000, 2010 and 2020 figures are census counts, each for Arthur as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Arthur?
The median resident of Arthur is 42.9 years old; 20.9% are under 18 and 23.0% are 65 or older. The largest group is non-Hispanic white residents at 98.5%, then non-Hispanic residents of two or more races at 1.0%.
| Measure | Arthur | Cass County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 42.9 ±13.4 | 32.8 | no clear change |
| Under 18 years | 20.9% ±5.4 pts | 22.2% | – |
| 65 years and over | 23.0% ±7.3 pts | 13.0% | – |
| Male | 52.8% ±5.0 pts | 50.7% | – |
| Hispanic or Latino (any race) | 0.0% ±6.2 pts | 3.6% | – |
| White alone, not Hispanic | 98.5% ±2.2 pts | 81.2% | no clear change |
| Black or African American alone, not Hispanic | 0.3% ±0.6 pts | 7.0% | – |
| Asian alone, not Hispanic | 0.0% ±6.2 pts | 3.2% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.3% ±0.8 pts | 0.9% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±6.2 pts | 0.0% | – |
| Two or more races, not Hispanic | 1.0% ±1.3 pts | 3.7% | – |
| Some other race alone, not Hispanic | 0.0% ±6.2 pts | 0.5% | – |
| Born outside the United States | 0.0% ±6.2 pts | 7.7% | – |
| Speak a language other than English at home (age 5+) | 2.2% ±1.6 pts | 8.9% | – |
| Civilian veterans (age 18+) | 12.3% ±6.7 pts | 5.5% | – |
| With a disability | 12.0% ±5.0 pts | 11.2% | – |
| No health insurance coverage | 3.0% ±3.2 pts | 5.5% | – |
| High school graduate or higher (age 25+) | 92.2% ±6.8 pts | 95.9% | – |
| Bachelor's degree or higher (age 25+) | 33.7% ±7.3 pts | 42.6% | no clear change |
| Graduate or professional degree (age 25+) | 4.6% ±4.2 pts | 14.1% | – |
| Lived in the same house a year earlier | 95.0% ±3.3 pts | 80.3% | – |
| Moved from another state in the past year | 2.4% ±3.4 pts | 5.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Arthur earn?
Half of Arthur's 158 households earn less than $88,393 a year (±$7,382), against $75,555 in Cass County and $76,657 in North Dakota. In 2015-2019 it was $75,380 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Arthur | Cass County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $88,393 ±$7,382 | $75,555 | no clear change |
| Mean household income | $110,366 ±$16,477 | $103,789 | – |
| Per capita income | $44,802 ±$7,744 | $45,643 | no clear change |
| People below the poverty line | 1.6% ±1.3 pts | 11.0% | – |
| Children under 18 below the poverty line | 0.0% ±25.8 pts | 11.8% | – |
| Households receiving SNAP | 2.5% ±3.8 pts | 6.2% | – |
| Households with a computer | 93.7% ±5.2 pts | 96.6% | – |
| Households with a broadband subscription | 93.0% ±6.3 pts | 89.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Arthur?
Owners occupy 86.1% of Arthur's occupied homes and renters 13.9%. The median owner-occupied home is valued at $217,900 by its owner (±$55,521). The median renter pays $645 a month including utilities.
| Measure | Arthur | Cass County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $217,900 ±$55,521 | $298,000 | no clear change |
| Median gross rent | $645 ±$17 | $958 | no clear change |
| Renters paying 35% or more of income on rent | 4.5% ±7.2 pts | 31.9% | – |
| Median monthly owner costs, with a mortgage | $1,556 ±$166 | $1,855 | – |
| Owner-occupied homes | 86.1% ±5.3 pts | 52.0% | +18.3 pts |
| Renter-occupied homes | 13.9% ±5.3 pts | 48.0% | – |
| Housing units | 165 ±34 | 89,038 | no clear change |
| Homeowner vacancy rate | 0.0% ±16.7 pts | 0.9% | – |
| Rental vacancy rate | 18.5% ±25.1 pts | 5.3% | – |
| Single-family detached homes | 73.9% ±9.7 pts | 42.9% | – |
| Mobile homes | 7.9% ±7.2 pts | 1.9% | – |
| Built 2020 or later | 0.0% ±14.0 pts | 3.0% | – |
| Built 2010 to 2019 | 9.7% ±7.4 pts | 20.9% | – |
| Built 1939 or earlier | 18.2% ±7.4 pts | 7.7% | – |
| Households with no vehicle | 0.6% ±1.8 pts | 6.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Arthur building?
Builders took permits for 3 new housing units in Arthur in 2025 (3 in single-family houses), 9.1 per 1,000 residents against 3.1 across North Dakota.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Arthur work and get to work?
79.9% of Arthur's workers drive alone. The average trip to work takes 22.2 minutes.
| Measure | Arthur | Cass County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 63.6% ±8.1 pts | 75.3% | – |
| Unemployment rate | 2.0% ±2.5 pts | 3.0% | – |
| Drove alone to work | 79.9% ±8.7 pts | 78.2% | – |
| Carpooled | 4.2% ±3.1 pts | 6.5% | – |
| Public transportation | 0.0% ±12.4 pts | 0.5% | – |
| Walked | 9.0% ±7.2 pts | 2.8% | – |
| Worked from home | 4.8% ±4.0 pts | 10.0% | – |
| Mean travel time to work | 22.2 min ±2.7 | 17.1 min | −11.1 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Arthur?
No census tract lies mostly in Arthur; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 402Cass County | 2,422 | $113,167 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Arthur) · Census block assignment files
How does Arthur compare with other places in North Dakota?
By the Census Bureau's July 2025 estimates, Arthur is the 14,839th-most populous of the 19,476 U.S. incorporated places that have one and the 116th-most populous of 355 in North Dakota.
Arthur is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 116th | 355 |
Arthur's figures with every place in North Dakota (CSV)
Every place in North Dakota, sortable · Compare Arthur with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Arthur?
27 of the 57 figures for Arthur on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Arthur are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Arthur.