Humboldt County, IA ZIP Codes
Iowa (IA) · 10 ZIP codes · 10 cities
10
ZIP codes
9,634
population (2021)
-1.8%
pop change since 2010
19091
FIPS code
Humboldt County ZIP code map
About Humboldt County
Humboldt County is located in Iowa and contains 10 ZIP codes across 10 cities and communities.
The county's population was 9,634 as of 2021,
a decrease of
1.8% from 9,815 in 2010.
The timezone is Mountain Time (observes DST).
The Federal Information Processing System (FIPS) code for Humboldt County is 19091.
| Population | |
|---|---|
| 2021 population | 9,634 |
| 2010 population | 9,815 |
| Change | -1.8% |
| County details | |
|---|---|
| State | Iowa |
| FIPS code | 19091 |
| Timezone | Mountain |
| Daylight saving | Yes |
Cities in Humboldt County
ZIP codes for Humboldt County, IA (10)
| ZIP code | City | County | Map |
|---|---|---|---|
| 50519 | Bode | Humboldt | View map |
| 50520 | Bradgate | Humboldt | View map |
| 50529 | Dakota City | Humboldt | View map |
| 50545 | Hardy | Humboldt | View map |
| 50548 | Humboldt | Humboldt | View map |
| 50558 | Livermore | Humboldt | View map |
| 50570 | Ottosen | Humboldt | View map |
| 50577 | Renwick | Humboldt | View map |
| 50582 | Rutland | Humboldt | View map |
| 50591 | Thor | Humboldt | View map |
Demographics & statistics
9,563
Population
42.4
Median age
$65,973
Median household income
$36,186
Per capita income
$109,320
Median home value
$558
Median monthly rent
80.4%
Home ownership
12.6%
Poverty rate
2.1%
Unemployment
3,447
Housing units
14.0%
Bachelor's or higher
Age distribution
Male
Female
310
Under 5
300
308
5–9
298
331
10–14
321
273
15–19
264
242
20–24
234
503
25–34
486
587
35–44
568
484
45–54
467
342
55–59
330
414
60–64
400
569
65–74
551
317
75–84
306
182
85+
176
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 2,235 | 22.0% |
| 18 and over | 7,328 | 78.0% |
| 65 and over | 2,101 | 19.8% |
| Median age | 42.4 years | |
Race & ethnicity
White
90.2%
Two or more races
3.6%
Hispanic or Latino
3.5%
Other race
0.9%
Native Hawaiian / Pacific Islander
0.7%
Asian
0.7%
Black or African American
0.3%
American Indian / Alaska Native
0.2%
| Group | Count | % |
|---|---|---|
| White | 8,939 | 90.2% |
| Two or more races | 352 | 3.6% |
| Hispanic or Latino | 351 | 3.5% |
| Other race | 90 | 0.9% |
| Native Hawaiian / Pacific Islander | 70 | 0.7% |
| Asian | 67 | 0.7% |
| Black or African American | 28 | 0.3% |
| American Indian / Alaska Native | 17 | 0.2% |
Household income
Under $10k
6.7%
$10k–$15k
3.0%
$15k–$25k
6.4%
$25k–$35k
10.5%
$35k–$50k
12.7%
$50k–$75k
19.8%
$75k–$100k
16.4%
$100k–$150k
14.3%
$150k–$200k
5.8%
$200k+
4.5%
| Range | % of households |
|---|---|
| Under $10k | 6.7% |
| $10k–$15k | 3.0% |
| $15k–$25k | 6.4% |
| $25k–$35k | 10.5% |
| $35k–$50k | 12.7% |
| $50k–$75k | 19.8% |
| $75k–$100k | 16.4% |
| $100k–$150k | 14.3% |
| $150k–$200k | 5.8% |
| $200k+ | 4.5% |
| Median income | $65,973 |
Housing
Home values
Under $50k
22.4%
$50k–$100k
24.6%
$100k–$150k
17.1%
$150k–$200k
12.6%
$200k–$300k
14.3%
$300k–$500k
6.9%
$500k–$1M
2.1%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $109,320 |
| Median rent / month | $558 |
| Owner occupied | 80.4% |
| Renter occupied | 19.6% |
| Vacant | 11.0% |
| Single-family detached | 93.7% |
| Large apartment buildings | 0.2% |
| Mobile homes | 1.4% |
| Median rooms | 6.8 |
| Avg household size (owned) | 2.21 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.4% |
| 2010–2019 | 1.9% |
| 2000–2009 | 3.9% |
| 1990–1999 | 3.9% |
| 1980–1989 | 6.1% |
| 1970–1979 | 11.4% |
| 1960–1969 | 6.1% |
| 1950–1959 | 9.8% |
| 1940–1949 | 6.5% |
| 1939 or earlier | 50.1% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.4% |
| 1 bedroom | 2.4% |
| 2 bedrooms | 23.1% |
| 3 bedrooms | 39.7% |
| 4 bedrooms | 25.3% |
| 5+ bedrooms | 9.1% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 2.4% |
| 1 vehicle | 19.3% |
| 2 vehicles | 38.0% |
| 3 or more | 40.4% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 23.2% |
| Electricity | 18.9% |
| Propane / LP gas | 56.0% |
| Fuel oil | 1.1% |
| Wood | 0.4% |
| No fuel used | 0.1% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 1,991 | 51.2% |
| Cohabiting couple | 404 | 10.2% |
| Male householder, no spouse | 862 | 18.9% |
| Female householder, no spouse | 980 | 19.8% |
| Households with children under 18 | 1,108 | 27.0% |
| Households with seniors (65+) | 1,418 | 32.9% |
| Average household size | 2.22 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 23.4% | 19.5% |
| Married | 60.2% | 59.2% |
| Separated | 0.2% | 0.4% |
| Widowed | 4.2% | 10.3% |
| Divorced | 11.9% | 10.7% |
Education
Less than 9th grade
2.0%
Some HS, no diploma
3.8%
HS graduate
38.7%
Some college, no degree
24.2%
Associate's degree
17.4%
Bachelor's degree
10.3%
Graduate / professional
3.7%
| Metric | % |
|---|---|
| HS diploma or higher | 94.2% |
| Bachelor's or higher | 14.0% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 194 | 11.0% |
| Kindergarten | 116 | 7.1% |
| Elementary school | 977 | 45.3% |
| High school | 519 | 23.2% |
| College / grad school | 202 | 13.4% |
Employment
Industry of employment
Education & healthcare
15.4%
Manufacturing
15.0%
Retail trade
13.3%
Agriculture & mining
10.6%
Transportation & utilities
8.9%
Construction
6.3%
Finance & real estate
5.3%
Other services
5.0%
Professional & management
4.6%
Public administration
4.5%
Arts, food & hospitality
3.8%
Information
3.8%
Wholesale trade
3.6%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 35.5% |
| Service | 14.5% |
| Sales & office | 15.3% |
| Natural resources & construction | 12.4% |
| Production & transportation | 22.3% |
Employment type
| Type | % |
|---|---|
| Private sector | 68.7% |
| Government | 15.1% |
| Self-employed | 15.9% |
| Unpaid family workers | 0.4% |
Commute
| Method | % |
|---|---|
| Drive alone | 74.0% |
| Carpool | 8.5% |
| Public transit | 0.5% |
| Walk | 4.3% |
| Other means | 0.9% |
| Avg commute (minutes) | 21.0 |
Poverty
All people
12.6%
Under 18 years
16.4%
18 and over
11.6%
Married-couple families
2.5%
Female-led households
35.3%
Income support
| Source | % of households |
|---|---|
| Social Security | 41.9% |
| Retirement income | 16.7% |
| Supplemental Security | 2.8% |
| Cash public assistance | 4.3% |
| Food stamps / SNAP | 12.1% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 34.9% |
| High cholesterol | 34.8% |
| Heart disease | 7.5% |
| Stroke | 3.4% |
| Asthma | 9.3% |
| Arthritis | 26.5% |
| Kidney disease | 3.1% |
| Pulmonary disease | 7.5% |
| Cancer | 7.4% |
| Behavior / access | % |
|---|---|
| Binge drinking | 21.4% |
| No physical activity | 25.6% |
| Less than 7 hrs sleep | 30.7% |
| Fair or poor health | 13.7% |
| Poor mental health | 13.4% |
| Poor physical health | 10.4% |
| No health insurance | 9.4% |
| Visited doctor (checkup) | 75.4% |
| Visited dentist | 64.2% |
| Cholesterol screening | 88.9% |
| Teeth loss | 13.6% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 568 | 5.9% |
| Disability | % |
|---|---|
| Any disability | 14.2% |
| Under 18 | 2.9% |
| 18–64 years | 14.1% |
| 65 and over | 29.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 67.1% |
| Public insurance | 43.4% |
| Uninsured under 19 | 3.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 8,953 | 93.1% |
| Spanish | 251 | 3.8% |
| Other Indo-European | 164 | 2.8% |
| Asian & Pacific Islander | 18 | 0.1% |
| Other languages | 69 | 0.9% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 9,258 | 95.8% |
| Born in same state | 9,223 | 95.6% |
| Born in different state | 7,796 | 80.5% |
| Foreign born | 35 | 0.3% |
| Naturalized citizen | 305 | 4.2% |
| Not a US citizen | 104 | 27.2% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Polish | 1,403 | 14.7% |
| Italian | 1,283 | 13.4% |
| French | 648 | 6.8% |
| Arab | 434 | 4.5% |
| Dutch | 350 | 3.7% |
| Ancestry | Count | % |
|---|---|---|
| English | 157 | 1.6% |
| Irish | 23 | 0.2% |
| German | 11 | 0.1% |
| Norwegian | 8 | 0.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 45.4% |
| Internet access | 93.3% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
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