Ottosen ZIP Codes — Humboldt County, IA

There is one unique ZIP code in Ottosen, Iowa and it is 50570. Area code: 515.
1
ZIP codes
43.36
sq mi land
0.02
sq mi water
515
area code
Ottosen, IA ZIP code map

About Ottosen, IA

Ottosen is a small city located in Humboldt County, Iowa. It is known for its friendly atmosphere and close-knit community. The city provides a quiet rural setting for residents and visitors alike.

Location & geography

Ottosen is situated in north-central Iowa, approximately 15 miles southwest of the larger city of Fort Dodge. The terrain includes expansive agricultural land, with a total land area of 43.36 square miles and a minimal water area of 0.02 square miles. Nearby communities include Gilmore City to the east, Bode to the north, and Humboldt to the west.

Community & economy

The character of Ottosen is defined by its welcoming residents and strong commitment to community values. Industries in the area mainly encompass agriculture, which plays a significant role in the local economy. Daily life in Ottosen allows residents to enjoy a peaceful pace, with opportunities for local events and community gatherings.

Transportation

Access to Ottosen is primarily via local roads, with Highway 169 serving as a key route for travel. The nearest significant airport is Fort Dodge Regional Airport, located about 16 miles to the northeast. Public transit options are limited, emphasizing the need for personal vehicles for transportation.

History

Ottosen was established in the late 19th century and has evolved as a center for agricultural activities. The city has witnessed various developments and events that have contributed to its growth over the years. While it remains a small community, its agricultural heritage continues to be a cornerstone of its identity.

Did you know?

One surprising fact about Ottosen is that it is home to a notably unique grain elevator that serves the surrounding agricultural community. The city is also known for its annual events that draw residents and visitors to partake in local culture.

ZIP codes for Ottosen, IA (1)
ZIP code City County Map
50570 Ottosen Humboldt View map

Demographics & statistics

152
Population
52.0
Median age
$67,426
Median household income
$39,663
Per capita income
$110,800
Median home value
$663
Median monthly rent
59.4%
Home ownership
1.3%
Poverty rate
1.5%
Unemployment
59
Housing units
34.8%
Bachelor's or higher

Age distribution

Male Female
8
Under 5
6
6
5–9
4
6
10–14
5
1
20–24
1
10
25–34
7
7
35–44
5
11
45–54
8
12
55–59
9
7
60–64
6
17
65–74
13
1
75–84
1
1
85+
0
← Male
Female →

Age summary

GroupCount%
Under 183523.0%
18 and over11777.0%
65 and over3321.7%
Median age52.0 years

Race & ethnicity

White 98.7%
Two or more races 1.3%
GroupCount%
White15098.7%
Two or more races21.3%

Household income

$15k–$25k 1.4%
$25k–$35k 17.4%
$35k–$50k 4.3%
$50k–$75k 46.4%
$75k–$100k 7.2%
$100k–$150k 10.1%
$150k–$200k 10.1%
$200k+ 2.9%
Range% of households
$15k–$25k1.4%
$25k–$35k17.4%
$35k–$50k4.3%
$50k–$75k46.4%
$75k–$100k7.2%
$100k–$150k10.1%
$150k–$200k10.1%
$200k+2.9%
Median income$67,426

Housing

Home values

Under $50k 19.5%
$50k–$100k 14.6%
$100k–$150k 36.6%
$150k–$200k 14.6%
$200k–$300k 4.9%
$300k–$500k 7.3%
$500k–$1M 2.4%

Housing overview

MetricValue
Median home value$110,800
Median rent / month$663
Owner occupied59.4%
Renter occupied40.6%
Vacant20.7%
Single-family detached100.0%
Large apartment buildings0.0%
Mobile homes0.0%
Median rooms10.0
Avg household size (owned)2.32

Year built

Era%
2020 or later0.0%
2010–20191.1%
2000–20096.9%
1990–19990.0%
1980–19891.1%
1970–19790.0%
1960–19692.3%
1950–19594.6%
1940–19491.1%
1939 or earlier82.8%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom1.1%
2 bedrooms9.2%
3 bedrooms27.6%
4 bedrooms41.4%
5+ bedrooms20.7%

Vehicles per household

Vehicles% of households
No vehicle0.0%
1 vehicle8.7%
2 vehicles39.1%
3 or more52.2%

Heating fuel

Fuel type%
Electricity2.9%
Propane / LP gas94.2%
Fuel oil1.4%
Wood1.4%

Households & families

Household typeCount%
Married-couple family3855.1%
Cohabiting couple22.9%
Male householder, no spouse2231.9%
Female householder, no spouse710.1%
Households with children under 181623.2%
Households with seniors (65+)2840.6%
Average household size2.20

Marital status

StatusMaleFemale
Never married4.6%3.8%
Married60.0%80.8%
Separated0.0%0.0%
Widowed23.1%5.8%
Divorced12.3%9.6%

Education

Less than 9th grade 0.0%
Some HS, no diploma 0.0%
HS graduate 27.0%
Some college, no degree 22.6%
Associate's degree 15.7%
Bachelor's degree 29.6%
Graduate / professional 5.2%
Metric%
HS diploma or higher100.0%
Bachelor's or higher34.8%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool12.9%
Kindergarten12.9%
Elementary school1750.0%
High school12.9%
College / grad school1441.2%

Employment

Industry of employment

Agriculture & mining 22.4%
Education & healthcare 13.4%
Information 11.9%
Transportation & utilities 10.4%
Public administration 10.4%
Finance & real estate 9.0%
Manufacturing 4.5%
Professional & management 4.5%
Other services 4.5%
Construction 3.0%
Wholesale trade 3.0%
Arts, food & hospitality 3.0%

Occupation

Category%
Management, business & arts71.6%
Service0.0%
Sales & office7.5%
Natural resources & construction14.9%
Production & transportation6.0%

Employment type

Type%
Private sector43.3%
Government23.9%
Self-employed29.9%
Unpaid family workers3.0%

Commute

Method%
Drive alone67.2%
Carpool10.4%
Public transit0.0%
Walk6.0%
Other means0.0%
Avg commute (minutes)16.4

Poverty

All people 1.3%
Under 18 years 0.0%
18 and over 1.7%
Married-couple families 0.0%
Female-led households 0.0%

Income support

Source% of households
Social Security56.5%
Retirement income30.4%
Supplemental Security1.4%
Cash public assistance0.0%
Food stamps / SNAP0.0%

Health indicators

Condition%
High blood pressure33.8%
High cholesterol33.4%
Heart disease7.0%
Stroke3.2%
Asthma9.3%
Arthritis25.5%
Kidney disease2.9%
Pulmonary disease7.1%
Cancer7.0%
Behavior / access%
Binge drinking21.7%
No physical activity25.2%
Less than 7 hrs sleep30.8%
Fair or poor health13.2%
Poor mental health13.4%
Poor physical health10.2%
No health insurance8.8%
Visited doctor (checkup)74.8%
Visited dentist65.2%
Cholesterol screening89.6%
Teeth loss13.8%

Veterans & disability

VeteransCount%
Civilian veterans21.7%
Disability%
Any disability9.2%
Under 180.0%
18–64 years11.9%
65 and over12.1%

Health insurance coverage

Type%
Private insurance78.9%
Public insurance40.1%
Uninsured under 190.0%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only13890.8%
Spanish00.0%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)15199.3%
Born in same state15199.3%
Born in different state14192.8%
Foreign born00.0%
Naturalized citizen10.7%
Not a US citizen1100.0%

Ancestry

AncestryCount%
Polish5435.5%
Arab2214.5%
AncestryCount%
Italian106.6%
Norwegian10.7%

Technology access

Metric% of households
Computer access45.4%
Internet access100.0%

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

Frequently asked questions
What ZIP codes does Ottosen, IA have?
Ottosen, IA has one ZIP code: 50570. Each ZIP code serves a distinct delivery area within the city and surrounding region.
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