City · Iowa
Granville, Iowa
Granville, city, in Sioux County, Iowa. Granville had 299 residents on July 1, 2025 by the Census Bureau's estimate, down 3.9% since 2020; the 2020 Census counted 310 and the ACS 2020-2024 5-year estimates put it at 265 (±65). GEOID 1932475.
Residents, July 2025 estimate
299
Census Bureau estimate (no margin published)
2020 Census count: 310 · ACS 2020-2024: 265 ±65
Median household income
$68,750
±$11,077 (90% margin)
Iowa: $75,059
Median home value
$162,500
±$47,041 (90% margin)
Iowa: $208,000
Median gross rent
not published
Iowa: $972
Where is Granville and what county is it in?
Granville is a city in Sioux County, Iowa. It covers 0.3 square miles of land, 1,065 residents per square mile in 2020.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Granville, and is it growing?
The Census Bureau estimates that 299 people lived in Granville on July 1, 2025, down 3.9% since 2020, while Iowa grew 1.5%. The 2020 Census counted 310 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 265 (±65).
| Measure | Granville | Sioux County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 265 ±65 | 36,212 | no clear change |
| Households | 138 ±33 | 12,690 | no clear change |
| Average household size | 1.89 ±0.26 | 2.67 | no clear change |
| Housing units | 143 ±34 | 13,285 | no clear change |
Granville's population since 2000
From 325 in 2000 to 299 in 2025: down 8.0%. The 2000, 2010 and 2020 figures are census counts, each for Granville 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 Granville?
The median resident of Granville is 58.9 years old; 17.0% are under 18 and 34.7% are 65 or older. The largest group is non-Hispanic white residents at 93.6%, then Hispanic or Latino residents (of any race) at 3.4%.
| Measure | Granville | Sioux County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 58.9 ±8.7 | 33.8 | no clear change |
| Under 18 years | 17.0% ±8.2 pts | 27.2% | – |
| 65 years and over | 34.7% ±8.6 pts | 16.2% | – |
| Male | 50.2% ±7.9 pts | 50.6% | – |
| Hispanic or Latino (any race) | 3.4% ±5.0 pts | 14.3% | – |
| White alone, not Hispanic | 93.6% ±5.9 pts | 82.8% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±9.0 pts | 0.6% | – |
| Asian alone, not Hispanic | 0.0% ±9.0 pts | 0.5% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±9.0 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±9.0 pts | 0.0% | – |
| Two or more races, not Hispanic | 3.0% ±3.5 pts | 1.3% | – |
| Some other race alone, not Hispanic | 0.0% ±9.0 pts | 0.3% | – |
| Born outside the United States | 2.6% ±3.8 pts | 8.5% | – |
| Speak a language other than English at home (age 5+) | 2.8% ±2.7 pts | 12.5% | – |
| Civilian veterans (age 18+) | 8.2% ±5.4 pts | 3.7% | – |
| With a disability | 20.4% ±9.0 pts | 9.0% | – |
| No health insurance coverage | 1.1% ±2.5 pts | 5.8% | – |
| High school graduate or higher (age 25+) | 94.4% ±7.4 pts | 90.9% | – |
| Bachelor's degree or higher (age 25+) | 14.1% ±5.6 pts | 30.6% | no clear change |
| Graduate or professional degree (age 25+) | 8.6% ±5.4 pts | 8.3% | – |
| Lived in the same house a year earlier | 92.3% ±5.7 pts | 90.6% | – |
| Moved from another state in the past year | 1.2% ±1.8 pts | 1.9% | – |
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 Granville earn?
Half of Granville's 138 households earn less than $68,750 a year (±$11,077), against $86,098 in Sioux County and $75,059 in Iowa. In 2015-2019 it was $66,919 in 2024 dollars; the margins of error cannot tell the two periods apart. 7.2% of residents live below the poverty line.
| Measure | Granville | Sioux County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $68,750 ±$11,077 | $86,098 | no clear change |
| Mean household income | $78,412 ±$13,058 | $104,988 | – |
| Per capita income | $39,829 ±$5,341 | $37,166 | no clear change |
| People below the poverty line | 7.2% ±4.4 pts | 6.7% | – |
| Children under 18 below the poverty line | 6.7% ±11.9 pts | 6.4% | – |
| Households receiving SNAP | 0.0% ±16.5 pts | 2.8% | – |
| Households with a computer | 97.1% ±2.8 pts | 95.2% | – |
| Households with a broadband subscription | 94.9% ±4.2 pts | 92.4% | – |
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 Granville?
Owners occupy 86.2% of Granville's occupied homes and renters 13.8%. The median owner-occupied home is valued at $162,500 by its owner (±$47,041).
| Measure | Granville | Sioux County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $162,500 ±$47,041 | $250,100 | +$59,614 |
| Renters paying 35% or more of income on rent | 17.6% ±34.2 pts | 24.8% | – |
| Median monthly owner costs, with a mortgage | $989 ±$67 | $1,654 | – |
| Owner-occupied homes | 86.2% ±9.4 pts | 76.1% | no clear change |
| Renter-occupied homes | 13.8% ±9.4 pts | 23.9% | – |
| Housing units | 143 ±34 | 13,285 | no clear change |
| Homeowner vacancy rate | 0.0% ±18.8 pts | 0.0% | – |
| Rental vacancy rate | 0.0% ±59.7 pts | 0.4% | – |
| Single-family detached homes | 95.1% ±3.4 pts | 79.7% | – |
| Mobile homes | 0.0% ±16.0 pts | 1.8% | – |
| Built 2020 or later | 0.0% ±16.0 pts | 1.5% | – |
| Built 2010 to 2019 | 6.3% ±5.9 pts | 9.8% | – |
| Built 1939 or earlier | 17.5% ±8.7 pts | 21.1% | – |
| Households with no vehicle | 3.6% ±3.5 pts | 2.9% | – |
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 Granville building?
Builders took permits for 1 new housing units in Granville in 2025 (1 in single-family houses), 3.3 per 1,000 residents against 4.2 across Iowa.
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 Granville work and get to work?
80.8% of Granville's workers drive alone. The average trip to work takes 14.6 minutes.
| Measure | Granville | Sioux County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 60.0% ±10.4 pts | 70.3% | – |
| Unemployment rate | 0.0% ±16.8 pts | 1.5% | – |
| Drove alone to work | 80.8% ±9.2 pts | 76.0% | – |
| Carpooled | 3.1% ±3.4 pts | 6.0% | – |
| Public transportation | 0.0% ±17.4 pts | 0.3% | – |
| Walked | 8.5% ±7.9 pts | 3.4% | – |
| Worked from home | 6.2% ±5.6 pts | 12.8% | – |
| Mean travel time to work | 14.6 min ±1.8 | 13.5 min | no clear change |
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 Granville?
No census tract lies mostly in Granville; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 705Sioux County | 3,040 | $102,760 |
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 Granville) · Census block assignment files
How does Granville compare with other places in Iowa?
By the Census Bureau's July 2025 estimates, Granville is the 15,165th-most populous of the 19,476 U.S. incorporated places that have one and the 564th-most populous of 939 in Iowa.
Granville 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 | 564th | 939 |
Granville's figures with every place in Iowa (CSV)
Every place in Iowa, sortable · Compare Granville 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 Granville?
27 of the 56 figures for Granville 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 Granville 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 Granville.