Humboldt ZIP Codes — Humboldt County, IA

There is one unique ZIP code in Humboldt, Iowa and it is 50548. Area code: 515.

ZIP codes

124.28

sq mi land

0.88

sq mi water

515

area code

Humboldt, IA ZIP code map

About Humboldt, IA

Humboldt is a charming city located in Humboldt County, Iowa. This small town offers a welcoming atmosphere and a strong sense of community among its residents. Known for its friendly locals and rich agricultural background, Humboldt exemplifies the heart of rural Iowa living.

Location & geography

Humboldt is situated in the northern part of Iowa, approximately 25 miles southwest of Mason City, 20 miles west of Fort Dodge, and about 90 miles northwest of Des Moines. The city covers a total area of 124.28 square miles, with 0.88 square miles accounting for water. The surrounding terrain is primarily flat and conducive to farming, which is prevalent in the region.

Community & economy

The community in Humboldt thrives on a blend of agricultural and small-town charm, making it a wonderful place to live and work. Agriculture remains a key industry, alongside growing sectors like retail and services that cater to local residents. Daily life in Humboldt includes various community events, local dining experiences, and recreational activities, fostering a close-knit environment.

Transportation

Humboldt is easily accessible via U.S. Highway 169, which runs directly through the city. The nearest major airport is Fort Dodge Regional Airport, located about 25 miles to the southeast. Public transportation options are limited, making private vehicles the primary means of travel for residents.

History

Humboldt was founded in the mid-1800s and has since developed a strong agricultural economy that has shaped its identity. Over the years, the city has seen growth due to its strategic location and the establishment of railroads, facilitating trade and transportation. Notable events in its history include the annual Humboldt County Fair, which celebrates the region's agricultural roots and community spirit.

Did you know?

One surprising fact about Humboldt is that it hosts the annual 'Humboldt River Run,' which attracts participants from all over the state. Additionally, the city is home to the historic Dakota City, where visitors can learn about the area's pioneer history.

ZIP codes for Humboldt, IA (1)

ZIP code	City	County	Map
50548	Humboldt	Humboldt	View map

Demographics & statistics

5,591

Population

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

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%
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	%
High blood pressure	36.8%
High cholesterol	35.7%
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	%
Binge drinking	19.4%
No physical activity	26.8%
Less than 7 hrs sleep	29.6%
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%
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

What ZIP codes does Humboldt, IA have?

Humboldt, IA has one ZIP code: 50548. Each ZIP code serves a distinct delivery area within the city and surrounding region.