50591 ZIP Code — Thor, IA

Humboldt County, Iowa

ZIP code 50591 is located in Thor, Iowa, within Humboldt County. It covers approximately 29.42 square miles and serves a population of 309 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 515.

About ZIP code 50591

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $174,300. Owner-occupancy is high at 89%, well above the national average.

Median household income is $72,500. Poverty affects 29% of residents, above the national average. SNAP benefit usage at 27% of households reflects economic stress in the area. 64% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with agriculture and mining as the leading industry. The average commute of 26 minutes is near the national average.

College attainment at 11% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 50591 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, high homeownership, a significant Social Security-dependent population, and elevated reliance on food assistance.

309
population
29.42
sq mi land
Standard
ZIP type
Central (CT)
timezone
50591 ZIP code map
Cities in ZIP code 50591

Below are the cities the US Postal Service accepts for ZIP code 50591. Using any city not on this list may result in mail delivery delays.

City Status
Thor Preferred
Nearby ZIP codes
50594 Vincent (6.1 mi) 50533 Eagle Grove (7 mi) 50516 Badger (7.4 mi) 50529 Dakota City (8.6 mi) 50542 Goldfield (8.6 mi) 50548 Humboldt (9.5 mi) 50577 Renwick (11.9 mi) 50599 Woolstock (13.1 mi) 50558 Livermore (14.4 mi) 50525 Clarion (14.8 mi) 50582 Rutland (14.9 mi) 50532 Duncombe (15 mi)
Demographics updated 05/2026
Population
Total population 309
Population density 11 / sq mi
State FIPS 19
County FIPS 091
Geography
Land area 29.42 sq mi
Water area 0.00 sq mi
Latitude 42.6810
Longitude -94.0406
Timezone Central (CT)
Area code 515
Total population by age
Gender
Race & ethnicity
Economics updated 05/2026
Household income
Income range This ZIP County avg State avg
Under $50k 38.7% 42.4% 40.1%
$50k – $100k 38.1% 34.6% 33.4%
$100k – $200k 23.2% 19.5% 21.5%
Over $200k 0.0% 3.5% 5.0%

Demographics & statistics

309
Population
11
People per sq mi
44.9
Median age
$72,500
Median household income
$35,431
Per capita income
$174,300
Median home value
$1,042
Median monthly rent
89.4%
Home ownership
29.1%
Poverty rate
6.5%
Unemployment
155
Housing units
10.6%
Bachelor's or higher

Age distribution

Male Female
12
Under 5
11
11
5–9
10
1
10–14
1
18
15–19
17
6
20–24
6
14
25–34
14
18
35–44
16
13
45–54
13
9
55–59
8
11
60–64
11
33
65–74
30
6
75–84
6
7
85+
7
← Male
Female →

Age summary

GroupCount%
Under 185517.8%
18 and over25482.2%
65 and over8928.8%
Median age44.9 years

Race & ethnicity

White 75.1%
Two or more races 12.3%
Hispanic or Latino 9.6%
Asian 1.8%
Other race 1.2%
GroupCount%
White25775.1%
Two or more races4212.3%
Hispanic or Latino339.6%
Asian61.8%
Other race41.2%

Household income

Income range This ZIP County avg State avg
Under $50k 38.7% 42.4% 40.1%
$50k – $100k 38.1% 34.6% 33.4%
$100k – $200k 23.2% 19.5% 21.5%
Over $200k 0.0% 3.5% 5.0%
Under $10k 3.5%
$10k–$15k 0.7%
$15k–$25k 4.9%
$25k–$35k 4.9%
$35k–$50k 13.4%
$50k–$75k 23.2%
$75k–$100k 19.0%
$100k–$150k 16.2%
$150k–$200k 4.2%
$200k+ 9.9%
Range% of households
Under $10k3.5%
$10k–$15k0.7%
$15k–$25k4.9%
$25k–$35k4.9%
$35k–$50k13.4%
$50k–$75k23.2%
$75k–$100k19.0%
$100k–$150k16.2%
$150k–$200k4.2%
$200k+9.9%
Median income$72,500

Housing

Home values

Under $50k 11.0%
$50k–$100k 21.3%
$100k–$150k 3.1%
$150k–$200k 30.7%
$200k–$300k 11.0%
$300k–$500k 22.8%

Housing overview

MetricValue
Median home value$174,300
Median rent / month$1,042
Owner occupied89.4%
Renter occupied10.6%
Vacant16.5%
Single-family detached96.5%
Large apartment buildings0.0%
Mobile homes0.0%
Median rooms7.4
Avg household size (owned)2.02

Year built

Era%
2020 or later0.0%
2010–20190.0%
2000–20090.0%
1990–19997.1%
1980–19890.0%
1970–19791.8%
1960–19694.1%
1950–19598.8%
1940–194913.5%
1939 or earlier64.7%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom0.0%
2 bedrooms28.2%
3 bedrooms28.8%
4 bedrooms40.6%
5+ bedrooms2.4%

Vehicles per household

Vehicles% of households
No vehicle1.4%
1 vehicle17.6%
2 vehicles12.7%
3 or more68.3%

Heating fuel

Fuel type%
Utility gas30.3%
Electricity7.7%
Propane / LP gas60.6%
No fuel used1.4%

Households & families

Household typeCount%
Married-couple family6847.9%
Cohabiting couple4431.0%
Male householder, no spouse1712.0%
Female householder, no spouse139.2%
Households with children under 185236.6%
Households with seniors (65+)6143.0%
Average household size2.18

Marital status

StatusMaleFemale
Never married30.0%33.8%
Married61.5%54.9%
Separated0.0%0.0%
Widowed2.3%7.5%
Divorced6.2%3.8%

Education

Less than 9th grade 4.2%
Some HS, no diploma 3.7%
HS graduate 43.5%
Some college, no degree 18.1%
Associate's degree 19.9%
Bachelor's degree 3.7%
Graduate / professional 6.9%
Metric%
HS diploma or higher92.1%
Bachelor's or higher10.6%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool1135.5%
Kindergarten00.0%
Elementary school1238.7%
High school412.9%
College / grad school412.9%

Employment

Industry of employment

Agriculture & mining 17.8%
Transportation & utilities 12.4%
Education & healthcare 12.4%
Manufacturing 10.1%
Information 9.3%
Finance & real estate 8.5%
Other services 8.5%
Retail trade 7.0%
Arts, food & hospitality 5.4%
Public administration 3.9%
Professional & management 3.1%
Construction 0.8%
Wholesale trade 0.8%

Occupation

Category%
Management, business & arts31.0%
Service20.2%
Sales & office7.0%
Natural resources & construction17.1%
Production & transportation24.8%

Employment type

Type%
Private sector62.0%
Government14.0%
Self-employed24.0%
Unpaid family workers0.0%

Commute

Method%
Drive alone75.2%
Carpool5.4%
Public transit3.9%
Walk1.6%
Work from home10.9%
Other means3.1%
Avg commute (minutes)26.2

Poverty

All people 29.1%
Under 18 years 58.2%
18 and over 22.8%
Married-couple families 5.9%
Female-led households 93.8%

Income support

Source% of households
Social Security64.1%
Retirement income16.9%
Supplemental Security0.0%
Cash public assistance0.0%
Food stamps / SNAP26.8%

Health indicators

Condition%
Obesity36.9%
High blood pressure32.5%
High cholesterol34.2%
Diabetes10.2%
Heart disease6.9%
Stroke3.1%
Asthma9.4%
Arthritis24.3%
Kidney disease2.9%
Pulmonary disease7.1%
Cancer6.7%
Behavior / access%
Smoking18.4%
Binge drinking22.8%
No physical activity24.6%
Less than 7 hrs sleep31.1%
Depression18.2%
Fair or poor health13.2%
Poor mental health14.1%
Poor physical health9.9%
No health insurance9.7%
Visited doctor (checkup)74.0%
Visited dentist63.1%
Cholesterol screening86.8%
Teeth loss13.7%

Veterans & disability

VeteransCount%
Civilian veterans249.4%
Disability%
Any disability14.2%
Under 181.8%
18–64 years17.0%
65 and over16.9%

Health insurance coverage

Type%
Private insurance49.2%
Public insurance57.3%
No insurance7.8%
Uninsured under 198.9%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only28692.6%
Spanish3010.5%
Other Indo-European258.7%
Asian & Pacific Islander00.0%
Other languages51.7%

Place of birth & citizenship

OriginCount%
Native born (US)27890.0%
Born in same state27890.0%
Born in different state22071.2%
Foreign born00.0%
Naturalized citizen3110.0%
Not a US citizen13.2%

Ancestry

AncestryCount%
Polish5317.2%
French206.5%
Dutch144.5%
AncestryCount%
Irish123.9%
Italian82.6%
Arab51.6%

Technology access

Metric% of households
Computer access46.0%
Internet access90.8%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 50591

What city is ZIP code 50591 in?

ZIP code 50591 is primarily assigned to Thor, Iowa.

What county is ZIP code 50591 in?

ZIP code 50591 falls within Humboldt County, Iowa.

Does ZIP code 50591 have a large retiree population?

64% of households in ZIP code 50591 receive Social Security income, suggesting a significant retiree or disability population.

What is the poverty rate in ZIP code 50591?

29% of residents in ZIP code 50591 live below the poverty line, above the national average.

Does ZIP code 50591 have an older population?

29% of residents in ZIP code 50591 are 65 or older, above the national average of ~17%.

Is ZIP code 50591 mostly owner-occupied?

89% of occupied units in ZIP code 50591 are owner-occupied, well above the national average.

What timezone is ZIP code 50591 in?

ZIP code 50591 observes the CST timezone.

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