Poweshiek County, IA ZIP Codes

Iowa (IA) · 8 ZIP codes · 8 cities

ZIP codes

18,586

population (2021)

-1.7%

pop change since 2010

19157

FIPS code

Poweshiek County ZIP code map

About Poweshiek County

Poweshiek County is located in Iowa and contains 8 ZIP codes across 8 cities and communities. The county's population was 18,586 as of 2021, a decrease of 1.7% from 18,914 in 2010. The timezone is Mountain Time (observes DST). The Federal Information Processing System (FIPS) code for Poweshiek County is 19157.

Population
2021 population	18,586
2010 population	18,914
Change	-1.7%

County details
State	Iowa
FIPS code	19157
Timezone	Mountain
Daylight saving	Yes

Cities in Poweshiek County

Brooklyn Deep River Grinnell Guernsey Hartwick Malcom Montezuma Searsboro

ZIP codes for Poweshiek County, IA (8)

ZIP code	City	County	Map
50112	Grinnell	Poweshiek	View map
50157	Malcom	Poweshiek	View map
50171	Montezuma	Poweshiek	View map
50242	Searsboro	Poweshiek	View map
52211	Brooklyn	Poweshiek	View map
52221	Guernsey	Poweshiek	View map
52222	Deep River	Poweshiek	View map
52232	Hartwick	Poweshiek	View map

Demographics & statistics

19,484

Population

40.4

Median age

$62,046

Median household income

$37,294

Per capita income

$165,663

Median home value

$836

Median monthly rent

76.2%

Home ownership

8.8%

Poverty rate

4.4%

Unemployment

6,845

Housing units

18.6%

Bachelor's or higher

Age distribution

Male Female

495

Under 5

439

566

5–9

502

630

10–14

560

1,028

15–19

913

867

20–24

771

995

25–34

884

1,110

35–44

987

1,113

45–54

988

671

55–59

597

715

60–64

636

1,136

65–74

1,010

689

75–84

613

301

85+

268

← Male

Female →

Age summary

Group	Count	%
Under 18	3,894	23.6%
18 and over	15,590	76.4%
65 and over	4,017	16.6%
Median age	40.4 years

Race & ethnicity

White 90.6%

Two or more races 3.1%

Asian 2.2%

Hispanic or Latino 1.9%

Black or African American 1.1%

Other race 1%

American Indian / Alaska Native 0.2%

Group	Count	%
White	17,990	90.6%
Two or more races	609	3.1%
Asian	429	2.2%
Hispanic or Latino	382	1.9%
Black or African American	219	1.1%
Other race	196	1%
American Indian / Alaska Native	41	0.2%

Household income

Under $10k 3.3%

$10k–$15k 5.0%

$15k–$25k 6.9%

$25k–$35k 7.7%

$35k–$50k 11.0%

$50k–$75k 18.9%

$75k–$100k 21.1%

$100k–$150k 17.6%

$150k–$200k 4.4%

$200k+ 4.2%

Range	% of households
Under $10k	3.3%
$10k–$15k	5.0%
$15k–$25k	6.9%
$25k–$35k	7.7%
$35k–$50k	11.0%
$50k–$75k	18.9%
$75k–$100k	21.1%
$100k–$150k	17.6%
$150k–$200k	4.4%
$200k+	4.2%
Median income	$62,046

Housing

Home values

Under $50k 12.1%

$50k–$100k 18.4%

$100k–$150k 17.0%

$150k–$200k 10.3%

$200k–$300k 19.7%

$300k–$500k 12.3%

$500k–$1M 7.1%

$1M+ 3.2%

Housing overview

Metric	Value
Median home value	$165,663
Median rent / month	$836
Owner occupied	76.2%
Renter occupied	23.8%
Vacant	10.3%
Single-family detached	85.9%
Large apartment buildings	0.9%
Mobile homes	5.7%
Median rooms	6.6
Avg household size (owned)	2.60

Year built

Era	%
2020 or later	0.1%
2010–2019	5.5%
2000–2009	8.0%
1990–1999	7.2%
1980–1989	9.2%
1970–1979	12.9%
1960–1969	9.3%
1950–1959	6.1%
1940–1949	6.4%
1939 or earlier	35.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.8%
1 bedroom	7.1%
2 bedrooms	17.3%
3 bedrooms	45.0%
4 bedrooms	24.0%
5+ bedrooms	5.8%

Vehicles per household

Vehicles	% of households
No vehicle	4.5%
1 vehicle	21.8%
2 vehicles	37.0%
3 or more	36.7%

Heating fuel

Fuel type	%
Utility gas	21.3%
Electricity	17.7%
Propane / LP gas	50.0%
Fuel oil	2.8%
Wood	6.1%
No fuel used	1.4%

Households & families

Household type	Count	%
Married-couple family	3,804	53.2%
Cohabiting couple	624	5.9%
Male householder, no spouse	1,668	20.6%
Female householder, no spouse	1,930	20.4%
Households with children under 18	1,885	30.4%
Households with seniors (65+)	2,933	30.2%
Average household size	2.53

Marital status

Status	Male	Female
Never married	27.4%	22.5%
Married	57.1%	55.0%
Separated	1.4%	3.0%
Widowed	2.8%	7.8%
Divorced	11.2%	11.8%

Education

Less than 9th grade 1.4%

Some HS, no diploma 4.3%

HS graduate 48.3%

Some college, no degree 17.3%

Associate's degree 10.3%

Bachelor's degree 13.4%

Graduate / professional 5.2%

Metric	%
HS diploma or higher	94.3%
Bachelor's or higher	18.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	184	8.9%
Kindergarten	198	7.4%
Elementary school	1,623	52.3%
High school	983	16.3%
College / grad school	1,894	15.1%

Employment

Industry of employment

Manufacturing 19.4%

Education & healthcare 18.1%

Retail trade 13.0%

Agriculture & mining 10.4%

Construction 8.3%

Other services 6.3%

Transportation & utilities 4.9%

Arts, food & hospitality 4.3%

Professional & management 3.8%

Information 3.6%

Finance & real estate 3.4%

Public administration 3.2%

Wholesale trade 1.2%

Occupation

Category	%
Management, business & arts	30.3%
Service	14.1%
Sales & office	17.0%
Natural resources & construction	14.4%
Production & transportation	24.3%

Employment type

Type	%
Private sector	75.4%
Government	12.4%
Self-employed	11.6%
Unpaid family workers	0.6%

Commute

Method	%
Drive alone	80.8%
Carpool	5.4%
Public transit	0.0%
Walk	3.1%
Other means	2.0%
Avg commute (minutes)	21.1

Poverty

All people 8.8%

Under 18 years 8.5%

18 and over 8.9%

Married-couple families 2.2%

Female-led households 13.0%

Income support

Source	% of households
Social Security	31.3%
Retirement income	16.4%
Supplemental Security	4.0%
Cash public assistance	2.1%
Food stamps / SNAP	11.0%

Health indicators

Condition	%
High blood pressure	34.2%
High cholesterol	34.0%
Heart disease	7.0%
Stroke	3.1%
Asthma	9.3%
Arthritis	26.3%
Kidney disease	2.9%
Pulmonary disease	7.0%
Cancer	7.5%

Behavior / access	%
Binge drinking	21.0%
No physical activity	23.7%
Less than 7 hrs sleep	31.6%
Fair or poor health	13.0%
Poor mental health	13.2%
Poor physical health	9.8%
No health insurance	9.1%
Visited doctor (checkup)	74.3%
Visited dentist	66.0%
Cholesterol screening	89.0%
Teeth loss	12.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,131	7.6%

Disability	%
Any disability	13.6%
Under 18	4.7%
18–64 years	12.7%
65 and over	26.8%

Health insurance coverage

Type	%
Private insurance	77.8%
Public insurance	31.5%
Uninsured under 19	0.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	18,550	93.7%
Spanish	230	1.4%
Other Indo-European	135	1.2%
Asian & Pacific Islander	74	0.1%
Other languages	12	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	18,878	98.3%
Born in same state	18,691	97.9%
Born in different state	14,148	82.7%
Foreign born	187	0.4%
Naturalized citizen	606	1.7%
Not a US citizen	152	24.1%

Ancestry

Ancestry	Count	%
Italian	2,723	14%
French	1,962	10.1%
English	1,514	7.8%
Arab	1,056	5.4%
Polish	571	2.9%

Ancestry	Count	%
Dutch	241	1.2%
German	21	0.1%
Norwegian	2	0%
Irish	1	0%

Technology access

Metric	% of households
Computer access	39.4%
Internet access	94.3%

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

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