City · Iowa
Thor, Iowa
Thor, city, in Humboldt County, Iowa. Thor had 177 residents on July 1, 2025 by the Census Bureau's estimate, down 1.1% since 2020; the 2020 Census counted 181 and the ACS 2020-2024 5-year estimates put it at 257 (±78). GEOID 1977790.
Residents, July 2025 estimate
177
Census Bureau estimate (no margin published)
2020 Census count: 181 · ACS 2020-2024: 257 ±78
Median household income
$57,305
±$28,644 (90% margin)
Iowa: $75,059
Median home value
$101,800
±$50,306 (90% margin)
Iowa: $208,000
Median gross rent
$1,075
±$231 (90% margin)
Iowa: $972
Where is Thor and what county is it in?
Thor is a city in Humboldt County, Iowa. It covers 1.0 square miles of land, 182 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 Thor, and is it growing?
The Census Bureau estimates that 177 people lived in Thor on July 1, 2025, down 1.1% since 2020, while Iowa grew 1.5%. The 2020 Census counted 181 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 257 (±78).
| Measure | Thor | Humboldt County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 257 ±78 | 9,591 | no clear change |
| Households | 117 ±48 | 4,219 | no clear change |
| Average household size | 2.20 ±0.50 | 2.24 | no clear change |
| Housing units | 125 ±49 | 4,603 | no clear change |
Thor's population since 2000
From 174 in 2000 to 177 in 2025: up 1.7%. The 2000, 2010 and 2020 figures are census counts, each for Thor 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 Thor?
The median resident of Thor is 38.9 years old; 21.8% are under 18 and 14.0% are 65 or older. The largest group is non-Hispanic white residents at 62.6%, then Hispanic or Latino residents (of any race) at 30.7%. 19.5% of residents were born outside the United States.
| Measure | Thor | Humboldt County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 38.9 ±18.9 | 42.1 | no clear change |
| Under 18 years | 21.8% ±9.4 pts | 23.7% | – |
| 65 years and over | 14.0% ±6.8 pts | 21.6% | – |
| Male | 50.6% ±8.2 pts | 49.6% | – |
| Hispanic or Latino (any race) | 30.7% ±19.2 pts | 5.7% | – |
| White alone, not Hispanic | 62.6% ±19.0 pts | 90.4% | −23.5 pts |
| Black or African American alone, not Hispanic | 0.0% ±9.3 pts | 0.3% | – |
| Asian alone, not Hispanic | 0.0% ±9.3 pts | 1.0% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±9.3 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.4% ±1.0 pts | 0.7% | – |
| Two or more races, not Hispanic | 6.2% ±7.0 pts | 1.5% | – |
| Some other race alone, not Hispanic | 0.0% ±9.3 pts | 0.2% | – |
| Born outside the United States | 19.5% ±12.5 pts | 4.4% | – |
| Speak a language other than English at home (age 5+) | 30.9% ±16.6 pts | 6.0% | – |
| Civilian veterans (age 18+) | 7.5% ±6.7 pts | 6.5% | – |
| With a disability | 18.7% ±11.0 pts | 13.8% | – |
| No health insurance coverage | 9.7% ±9.5 pts | 5.8% | – |
| High school graduate or higher (age 25+) | 77.9% ±14.8 pts | 93.2% | – |
| Bachelor's degree or higher (age 25+) | 6.5% ±4.9 pts | 19.4% | – |
| Graduate or professional degree (age 25+) | 5.2% ±3.9 pts | 4.6% | – |
| Lived in the same house a year earlier | 99.6% ±0.9 pts | 87.3% | – |
| Moved from another state in the past year | 0.0% ±9.4 pts | 2.2% | – |
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 Thor earn?
Half of Thor's 117 households earn less than $57,305 a year (±$28,644), against $71,946 in Humboldt County and $75,059 in Iowa. In 2015-2019 it was $68,398 in 2024 dollars; the margins of error cannot tell the two periods apart. 31.5% of residents live below the poverty line.
| Measure | Thor | Humboldt County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $57,305 ±$28,644 | $71,946 | no clear change |
| Mean household income | $76,022 ±$13,753 | $92,749 | – |
| Per capita income | $28,128 ±$6,898 | $41,763 | no clear change |
| People below the poverty line | 31.5% ±20.1 pts | 12.9% | no clear change |
| Children under 18 below the poverty line | 44.6% ±38.7 pts | 21.1% | – |
| Households receiving SNAP | 30.8% ±25.2 pts | 11.3% | – |
| Households with a computer | 95.7% ±5.7 pts | 94.2% | – |
| Households with a broadband subscription | 94.9% ±6.4 pts | 87.0% | – |
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 Thor?
Owners occupy 89.7% of Thor's occupied homes and renters 10.3%. The median owner-occupied home is valued at $101,800 by its owner (±$50,306). The median renter pays $1,075 a month including utilities.
| Measure | Thor | Humboldt County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $101,800 ±$50,306 | $155,800 | no clear change |
| Median gross rent | $1,075 ±$231 | $744 | – |
| Renters paying 35% or more of income on rent | 45.5% ±54.5 pts | 28.6% | – |
| Median monthly owner costs, with a mortgage | $1,095 ±$89 | $1,265 | – |
| Owner-occupied homes | 89.7% ±11.5 pts | 77.2% | no clear change |
| Renter-occupied homes | 10.3% ±11.5 pts | 22.8% | – |
| Housing units | 125 ±49 | 4,603 | no clear change |
| Homeowner vacancy rate | 0.0% ±21.0 pts | 1.6% | – |
| Rental vacancy rate | 0.0% ±75.1 pts | 0.7% | – |
| Single-family detached homes | 98.4% ±3.3 pts | 84.5% | – |
| Mobile homes | 0.0% ±18.0 pts | 1.3% | – |
| Built 2020 or later | 0.0% ±18.0 pts | 0.2% | – |
| Built 2010 to 2019 | 0.0% ±18.0 pts | 4.7% | – |
| Built 1939 or earlier | 53.6% ±21.5 pts | 32.0% | – |
| Households with no vehicle | 1.7% ±3.6 pts | 4.8% | – |
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 do people in Thor work and get to work?
79.2% of Thor's workers drive alone. The average trip to work takes 22.1 minutes.
| Measure | Thor | Humboldt County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 53.6% ±11.7 pts | 64.1% | – |
| Unemployment rate | 9.8% ±15.5 pts | 5.0% | – |
| Drove alone to work | 79.2% ±15.2 pts | 78.7% | – |
| Carpooled | 8.9% ±9.2 pts | 7.9% | – |
| Public transportation | 5.0% ±6.8 pts | 0.2% | – |
| Walked | 2.0% ±3.0 pts | 1.9% | – |
| Worked from home | 0.0% ±21.7 pts | 10.2% | – |
| Mean travel time to work | 22.1 min ±11.6 | 19.7 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 Thor?
No census tract lies mostly in Thor; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9701Humboldt County | 1,936 | $66,979 |
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 Thor) · Census block assignment files
How does Thor compare with other places in Iowa?
By the Census Bureau's July 2025 estimates, Thor is the 16,857th-most populous of the 19,476 U.S. incorporated places that have one and the 694th-most populous of 939 in Iowa.
Thor 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 | 694th | 939 |
Thor's figures with every place in Iowa (CSV)
Every place in Iowa, sortable · Compare Thor 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 Thor?
26 of the 57 figures for Thor 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 Thor 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 Thor.