Sigourney ZIP Codes — Keokuk County, IA

There is one unique ZIP code in Sigourney, Iowa and it is 52591. Area code: 641.

ZIP codes

124.24

sq mi land

0.11

sq mi water

641

area code

Sigourney, IA ZIP code map

About Sigourney, IA

Sigourney is a charming city located in the heart of Iowa, known for its friendly atmosphere and strong sense of community. It serves as the county seat of Keokuk County, which provides a unique blend of rural and small-town experiences. Visitors and residents alike appreciate the rich history and engaging local culture that Sigourney has to offer.

Location & geography

Situated in the southeastern part of Iowa, Sigourney boasts a total land area of 124.24 square miles, complemented by a small water area of 0.11 square miles. The city is surrounded by beautiful landscapes typical of Iowa's rolling hills and fertile plains. Nearby cities include Oskaloosa, located approximately 26 miles to the west, and Washington, which is about 24 miles to the northeast.

Community & economy

The character of Sigourney is defined by its strong community spirit and dedication to local values. The economy is supported by agriculture, small businesses, and various service industries, providing residents with a range of employment opportunities. Daily life in Sigourney includes a mix of local events, outdoor activities, and a commitment to community engagement.

Transportation

Transportation in Sigourney is facilitated by several major highways, including U.S. Route 63, which connects the city to surrounding areas. The nearest significant airport is the Southeast Iowa Regional Airport located about 38 miles to the south in Burlington. Public transit options are limited, but the city’s layout encourages local travel by car or bicycle.

History

Sigourney was founded in the mid-19th century and quickly developed into a hub for agriculture and education in the region. The city has a rich history, with notable events involving the development of local institutions that contributed to its growth. Agriculture remains a key industry, shaping both the economy and the culture of the area.

Did you know?

One surprising fact about Sigourney is its role as a historic center for the Ku Klux Klan during the 1920s, which has since prompted much discussion and reflection. Additionally, the city is home to the Keokuk County Fair, an event that draws visitors from all around the region each summer.

ZIP codes for Sigourney, IA (1)

ZIP code	City	County	Map
52591	Sigourney	Keokuk	View map

Demographics & statistics

2,674

Population

44.7

Median age

$58,106

Median household income

$38,196

Per capita income

$119,200

Median home value

$843

Median monthly rent

68.0%

Home ownership

11.9%

Poverty rate

1.2%

Unemployment

970

Housing units

19.9%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

151

25–34

146

196

35–44

188

126

45–54

121

55–59

109

60–64

104

143

65–74

138

125

75–84

120

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	445	16.6%
18 and over	2,229	83.4%
65 and over	691	25.8%
Median age	44.7 years

Race & ethnicity

White 98%

Two or more races 0.8%

Black or African American 0.7%

Hispanic or Latino 0.2%

Other race 0.2%

Group	Count	%
White	2,626	98%
Two or more races	22	0.8%
Black or African American	19	0.7%
Hispanic or Latino	6	0.2%
Other race	6	0.2%

Household income

Under $10k 3.4%

$10k–$15k 6.3%

$15k–$25k 15.1%

$25k–$35k 9.7%

$35k–$50k 9.7%

$50k–$75k 17.8%

$75k–$100k 13.3%

$100k–$150k 13.5%

$150k–$200k 5.7%

$200k+ 5.5%

Range	% of households
Under $10k	3.4%
$10k–$15k	6.3%
$15k–$25k	15.1%
$25k–$35k	9.7%
$35k–$50k	9.7%
$50k–$75k	17.8%
$75k–$100k	13.3%
$100k–$150k	13.5%
$150k–$200k	5.7%
$200k+	5.5%
Median income	$58,106

Housing

Home values

Under $50k 8.8%

$50k–$100k 28.4%

$100k–$150k 21.1%

$150k–$200k 13.9%

$200k–$300k 14.8%

$300k–$500k 8.8%

$500k–$1M 4.0%

Housing overview

Metric	Value
Median home value	$119,200
Median rent / month	$843
Owner occupied	68.0%
Renter occupied	32.0%
Vacant	13.3%
Single-family detached	77.9%
Large apartment buildings	0.0%
Mobile homes	2.3%
Median rooms	5.7
Avg household size (owned)	2.25

Year built

Era	%
2020 or later	0.4%
2010–2019	6.4%
2000–2009	7.7%
1990–1999	1.9%
1980–1989	6.9%
1970–1979	12.9%
1960–1969	15.3%
1950–1959	6.6%
1940–1949	4.1%
1939 or earlier	37.8%

Bedrooms

Size	% of units
No bedroom (studio)	2.1%
1 bedroom	7.1%
2 bedrooms	38.8%
3 bedrooms	34.2%
4 bedrooms	13.6%
5+ bedrooms	4.2%

Vehicles per household

Vehicles	% of households
No vehicle	3.4%
1 vehicle	35.2%
2 vehicles	26.3%
3 or more	35.1%

Heating fuel

Fuel type	%
Utility gas	54.2%
Electricity	23.8%
Propane / LP gas	16.8%
Wood	2.7%

Households & families

Household type	Count	%
Married-couple family	552	47.4%
Cohabiting couple	100	8.6%
Male householder, no spouse	218	18.7%
Female householder, no spouse	294	25.3%
Households with children under 18	284	24.4%
Households with seniors (65+)	456	39.2%
Average household size	2.20

Marital status

Status	Male	Female
Never married	36.1%	16.6%
Married	50.0%	50.6%
Separated	1.3%	0.3%
Widowed	3.0%	16.8%
Divorced	9.6%	15.7%

Education

Less than 9th grade 3.4%

Some HS, no diploma 4.0%

HS graduate 42.6%

Some college, no degree 19.8%

Associate's degree 10.4%

Bachelor's degree 15.2%

Graduate / professional 4.6%

Metric	%
HS diploma or higher	92.6%
Bachelor's or higher	19.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	47	10.0%
Kindergarten	8	1.7%
Elementary school	208	44.3%
High school	129	27.4%
College / grad school	78	16.6%

Employment

Industry of employment

Education & healthcare 28.2%

Retail trade 10.5%

Construction 9.1%

Manufacturing 8.7%

Arts, food & hospitality 8.2%

Transportation & utilities 7.6%

Professional & management 7.3%

Agriculture & mining 7.1%

Other services 5.4%

Public administration 3.6%

Wholesale trade 2.5%

Finance & real estate 1.8%

Occupation

Category	%
Management, business & arts	31.4%
Service	14.9%
Sales & office	18.0%
Natural resources & construction	16.1%
Production & transportation	19.6%

Employment type

Type	%
Private sector	74.3%
Government	11.9%
Self-employed	13.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	80.6%
Carpool	5.0%
Public transit	0.0%
Walk	4.1%
Other means	0.3%
Avg commute (minutes)	20.8

Poverty

All people 11.9%

Under 18 years 16.8%

18 and over 10.9%

Married-couple families 8.0%

Female-led households 56.7%

Income support

Source	% of households
Social Security	38.6%
Retirement income	26.6%
Supplemental Security	9.0%
Cash public assistance	4.2%
Food stamps / SNAP	9.9%

Health indicators

Condition	%
High blood pressure	38.3%
High cholesterol	36.3%
Heart disease	8.2%
Stroke	3.7%
Asthma	9.3%
Arthritis	29.1%
Kidney disease	3.4%
Pulmonary disease	7.9%
Cancer	8.6%

Behavior / access	%
Binge drinking	20.0%
No physical activity	27.2%
Less than 7 hrs sleep	30.7%
Fair or poor health	14.1%
Poor mental health	12.8%
Poor physical health	10.5%
No health insurance	9.3%
Visited doctor (checkup)	77.2%
Visited dentist	66.5%
Cholesterol screening	89.5%
Teeth loss	13.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	181	8.1%

Disability	%
Any disability	19.7%
Under 18	4.5%
18–64 years	14.1%
65 and over	45.3%

Health insurance coverage

Type	%
Private insurance	67.9%
Public insurance	48.7%
Uninsured under 19	0.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,535	94.8%
Spanish	6	0.2%
Other Indo-European	6	0.2%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,655	99.3%
Born in same state	2,655	99.3%
Born in different state	2,280	85.3%
Foreign born	0	0.0%
Naturalized citizen	19	0.7%
Not a US citizen	1	5.3%

Ancestry

Ancestry	Count	%
Italian	321	12%
Arab	200	7.5%
French	158	5.9%

Ancestry	Count	%
English	135	5%
Polish	39	1.5%
Dutch	8	0.3%

Technology access

Metric	% of households
Computer access	43.5%
Internet access	90.9%

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

Frequently asked questions

What ZIP codes does Sigourney, IA have?

Sigourney, IA has one ZIP code: 52591. Each ZIP code serves a distinct delivery area within the city and surrounding region.