50548 ZIP Code — Humboldt, IA
Humboldt County, Iowa
ZIP code 50548 is located in Humboldt, Iowa, within Humboldt County. It covers approximately 124.28 square miles and serves a population of 5,591 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 515.
About ZIP code 50548
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 $154,300. Owner-occupancy sits near the national average at 70%.
Median household income is $68,440. 41% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 14 minutes is near the national average.
Educational attainment is near the national average, with 24% of residents holding a bachelor's degree or higher.
5,591
population
124.28
sq mi land
Standard
ZIP type
Central (CT)
timezone
50548 ZIP code map
Cities in ZIP code 50548
Below are the cities the US Postal Service accepts for ZIP code 50548. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Humboldt | Preferred |
Nearby ZIP codes
50529 Dakota City (1 mi)
50582 Rutland (5.8 mi)
50516 Badger (8.5 mi)
50520 Bradgate (9.1 mi)
50591 Thor (9.5 mi)
50558 Livermore (10.5 mi)
50524 Clare (11 mi)
50541 Gilmore City (11 mi)
50519 Bode (12.8 mi)
50594 Vincent (13.2 mi)
50570 Ottosen (13.9 mi)
50542 Goldfield (14.2 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 5,591 |
| Population density | 45 / sq mi |
| State FIPS | 19 |
| County FIPS | 091 |
| Geography | |
|---|---|
| Land area | 124.28 sq mi |
| Water area | 0.88 sq mi |
| Latitude | 42.7250 |
| Longitude | -94.2177 |
| 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 | 41.3% | 42.4% | 40.1% |
| $50k – $100k | 34.2% | 34.6% | 33.4% |
| $100k – $200k | 20.8% | 19.5% | 21.5% |
| Over $200k | 3.8% | 3.5% | 5.0% |
Demographics & statistics
5,591
Population
45
People per sq mi
41.9
Median age
$68,440
Median household income
$37,718
Per capita income
$154,300
Median home value
$650
Median monthly rent
69.6%
Home ownership
13.1%
Poverty rate
0.6%
Unemployment
1,873
Housing units
23.6%
Bachelor's or higher
Age distribution
Male
Female
146
Under 5
145
181
5–9
179
209
10–14
206
156
15–19
155
142
20–24
140
306
25–34
302
333
35–44
329
225
45–54
223
201
55–59
199
210
60–64
208
342
65–74
338
216
75–84
214
144
85+
142
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 1,274 | 22.8% |
| 18 and over | 4,317 | 77.2% |
| 65 and over | 1,396 | 25.0% |
| Median age | 41.9 years | |
Race & ethnicity
White
95.3%
Two or more races
1.9%
Hispanic or Latino
1.6%
Asian
1.1%
American Indian / Alaska Native
0.1%
Black or African American
0.1%
| Group | Count | % |
|---|---|---|
| White | 5,413 | 95.3% |
| Two or more races | 108 | 1.9% |
| Hispanic or Latino | 89 | 1.6% |
| Asian | 61 | 1.1% |
| American Indian / Alaska Native | 6 | 0.1% |
| Black or African American | 3 | 0.1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 41.3% | 42.4% | 40.1% |
| $50k – $100k | 34.2% | 34.6% | 33.4% |
| $100k – $200k | 20.8% | 19.5% | 21.5% |
| Over $200k | 3.8% | 3.5% | 5.0% |
Under $10k
7.7%
$10k–$15k
2.5%
$15k–$25k
9.3%
$25k–$35k
7.6%
$35k–$50k
9.3%
$50k–$75k
20.1%
$75k–$100k
17.5%
$100k–$150k
15.7%
$150k–$200k
4.2%
$200k+
6.1%
| Range | % of households |
|---|---|
| Under $10k | 7.7% |
| $10k–$15k | 2.5% |
| $15k–$25k | 9.3% |
| $25k–$35k | 7.6% |
| $35k–$50k | 9.3% |
| $50k–$75k | 20.1% |
| $75k–$100k | 17.5% |
| $100k–$150k | 15.7% |
| $150k–$200k | 4.2% |
| $200k+ | 6.1% |
| Median income | $68,440 |
Housing
Home values
Under $50k
6.7%
$50k–$100k
10.0%
$100k–$150k
31.8%
$150k–$200k
17.6%
$200k–$300k
20.4%
$300k–$500k
10.8%
$500k–$1M
2.6%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $154,300 |
| Median rent / month | $650 |
| Owner occupied | 69.6% |
| Renter occupied | 30.4% |
| Vacant | 5.0% |
| Single-family detached | 78.3% |
| Large apartment buildings | 1.4% |
| Mobile homes | 1.2% |
| Median rooms | 5.8 |
| Avg household size (owned) | 2.38 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.2% |
| 2010–2019 | 3.6% |
| 2000–2009 | 8.4% |
| 1990–1999 | 7.5% |
| 1980–1989 | 3.7% |
| 1970–1979 | 16.0% |
| 1960–1969 | 15.1% |
| 1950–1959 | 16.1% |
| 1940–1949 | 4.2% |
| 1939 or earlier | 25.2% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 9.7% |
| 2 bedrooms | 28.7% |
| 3 bedrooms | 31.9% |
| 4 bedrooms | 21.6% |
| 5+ bedrooms | 8.0% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 7.3% |
| 1 vehicle | 34.0% |
| 2 vehicles | 40.2% |
| 3 or more | 18.6% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 62.4% |
| Electricity | 28.5% |
| Propane / LP gas | 8.1% |
| Fuel oil | 0.6% |
| Wood | 0.4% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 1,106 | 44.2% |
| Cohabiting couple | 205 | 8.2% |
| Male householder, no spouse | 532 | 21.3% |
| Female householder, no spouse | 660 | 26.4% |
| Households with children under 18 | 622 | 24.9% |
| Households with seniors (65+) | 903 | 36.1% |
| Average household size | 2.18 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 28.5% | 21.9% |
| Married | 52.9% | 49.2% |
| Separated | 0.7% | 1.5% |
| Widowed | 3.7% | 15.2% |
| Divorced | 14.2% | 12.2% |
Education
Less than 9th grade
0.5%
Some HS, no diploma
3.6%
HS graduate
36.9%
Some college, no degree
15.5%
Associate's degree
19.9%
Bachelor's degree
19.0%
Graduate / professional
4.6%
| Metric | % |
|---|---|
| HS diploma or higher | 95.9% |
| Bachelor's or higher | 23.6% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 76 | 6.4% |
| Kindergarten | 52 | 4.4% |
| Elementary school | 608 | 51.4% |
| High school | 333 | 28.2% |
| College / grad school | 113 | 9.6% |
Employment
Industry of employment
Education & healthcare
19.3%
Manufacturing
18.4%
Retail trade
11.7%
Construction
8.0%
Transportation & utilities
6.5%
Professional & management
5.9%
Agriculture & mining
5.1%
Finance & real estate
5.1%
Arts, food & hospitality
5.0%
Information
4.5%
Other services
4.2%
Wholesale trade
3.4%
Public administration
2.8%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 36.2% |
| Service | 12.8% |
| Sales & office | 21.2% |
| Natural resources & construction | 9.5% |
| Production & transportation | 20.4% |
Employment type
| Type | % |
|---|---|
| Private sector | 75.6% |
| Government | 14.6% |
| Self-employed | 9.8% |
| Unpaid family workers | 0.1% |
Commute
| Method | % |
|---|---|
| Drive alone | 79.0% |
| Carpool | 7.5% |
| Public transit | 0.0% |
| Walk | 1.3% |
| Work from home | 11.4% |
| Other means | 0.8% |
| Avg commute (minutes) | 14.3 |
Poverty
All people
13.1%
Under 18 years
21.6%
18 and over
10.5%
Married-couple families
1.9%
Female-led households
31.6%
Income support
| Source | % of households |
|---|---|
| Social Security | 40.8% |
| Retirement income | 22.1% |
| Supplemental Security | 3.6% |
| Cash public assistance | 3.8% |
| Food stamps / SNAP | 8.9% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 35.8% |
| High blood pressure | 36.8% |
| High cholesterol | 35.7% |
| Diabetes | 11.7% |
| Heart disease | 8.6% |
| Stroke | 3.9% |
| Asthma | 9.3% |
| Arthritis | 28.9% |
| Kidney disease | 3.6% |
| Pulmonary disease | 8.1% |
| Cancer | 8.7% |
| Behavior / access | % |
|---|---|
| Smoking | 16.5% |
| Binge drinking | 19.4% |
| No physical activity | 26.8% |
| Less than 7 hrs sleep | 29.6% |
| Depression | 17.2% |
| Fair or poor health | 14.7% |
| Poor mental health | 12.9% |
| Poor physical health | 10.8% |
| No health insurance | 9.8% |
| Visited doctor (checkup) | 77.0% |
| Visited dentist | 64.2% |
| Cholesterol screening | 89.5% |
| Teeth loss | 14.3% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 393 | 9.1% |
| Disability | % |
|---|---|
| Any disability | 16.4% |
| Under 18 | 5.2% |
| 18–64 years | 16.3% |
| 65 and over | 27.2% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 70.8% |
| Public insurance | 44.3% |
| No insurance | 5.2% |
| Uninsured under 19 | 4.3% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 5,300 | 94.8% |
| Spanish | 58 | 1.1% |
| Other Indo-European | 46 | 0.9% |
| Asian & Pacific Islander | 12 | 0.2% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 5,508 | 98.5% |
| Born in same state | 5,478 | 98.0% |
| Born in different state | 4,598 | 82.2% |
| Foreign born | 30 | 0.5% |
| Naturalized citizen | 83 | 1.5% |
| Not a US citizen | 26 | 31.3% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Polish | 860 | 15.4% |
| Italian | 804 | 14.4% |
| French | 380 | 6.8% |
| Arab | 297 | 5.3% |
| Ancestry | Count | % |
|---|---|---|
| Dutch | 203 | 3.6% |
| English | 90 | 1.6% |
| Norwegian | 5 | 0.1% |
| German | 3 | 0.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 44.8% |
| Internet access | 88.3% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 50548
What city is ZIP code 50548 in?
ZIP code 50548 is primarily assigned to Humboldt, Iowa.
What county is ZIP code 50548 in?
ZIP code 50548 falls within Humboldt County, Iowa.
Does ZIP code 50548 have a large retiree population?
41% of households in ZIP code 50548 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 50548?
The median home value in ZIP code 50548 is $154,300.
Does ZIP code 50548 have a large veteran population?
9% of civilians in ZIP code 50548 are veterans, above the national average of ~7%.
What is the population of ZIP code 50548?
ZIP code 50548 has an estimated population of 5,591 residents, with a density of 45 people per square mile.
What timezone is ZIP code 50548 in?
ZIP code 50548 observes the CST timezone.