Grand River ZIP Codes — Decatur County, IA

There is one unique ZIP code in Grand River, Iowa and it is 50108. Area code: 641.

ZIP codes

81.53

sq mi land

0.11

sq mi water

641

area code

Grand River, IA ZIP code map

About Grand River, IA

Grand River is a charming city located in the state of Iowa, specifically within Decatur County. This small community offers a tranquil setting, making it an appealing spot for those who appreciate rural life. With a strong sense of community, Grand River provides its residents with a welcoming atmosphere and close-knit relationships.

Location & geography

Grand River is situated in the southern part of Iowa, offering picturesque views of the rolling hills and open fields typical of the region. The city is approximately 12 miles southeast of Leon, around 25 miles southwest of Osceola, and 21 miles north of the town of Mount Ayr. Covering a total land area of 81.53 square miles and a water area of 0.11 square miles, the terrain is primarily characterized by its rural landscape.

Community & economy

The character of Grand River is defined by its friendly residents and strong community ties, reflecting the values of small-town living. Agriculture is a significant industry in the area, contributing to the local economy, along with various small businesses that serve the community. Daily life in Grand River is marked by a slower pace, with plenty of opportunities for outdoor activities and community gatherings.

Transportation

Grand River is accessible via highways that connect the city to other parts of Iowa, ensuring convenient travel options for residents and visitors. The nearest major airport is located in Des Moines, which is approximately 60 miles to the north. Local transportation typically revolves around personal vehicles, as public transit options are limited.

History

Grand River was established in the late 19th century, primarily as a farming community that leveraged the fertile lands of Decatur County. Over the years, it has become known for its agricultural activity, contributing significantly to the local economy. Notable events in its history include the development of local infrastructure that supported farming and the gradual growth of community services.

Did you know?

A surprising fact about Grand River is that it has only one ZIP code, 50108, which encompasses the entire area. This singular ZIP code reflects the compact size and close community of the city.

ZIP codes for Grand River, IA (1)

ZIP code	City	County	Map
50108	Grand River	Decatur	View map

Demographics & statistics

438

Population

50.1

Median age

$32,000

Median household income

$22,770

Per capita income

$48,100

Median home value

$578

Median monthly rent

82.8%

Home ownership

25.6%

Poverty rate

3.7%

Unemployment

217

Housing units

11.9%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	75	17.1%
18 and over	363	82.9%
65 and over	124	28.3%
Median age	50.1 years

Race & ethnicity

White 100%

Group	Count	%
White	438	100%

Household income

Under $10k 6.8%

$10k–$15k 10.4%

$15k–$25k 26.6%

$25k–$35k 10.4%

$35k–$50k 17.7%

$50k–$75k 9.4%

$75k–$100k 6.3%

$100k–$150k 5.2%

$150k–$200k 6.3%

$200k+ 1.0%

Range	% of households
Under $10k	6.8%
$10k–$15k	10.4%
$15k–$25k	26.6%
$25k–$35k	10.4%
$35k–$50k	17.7%
$50k–$75k	9.4%
$75k–$100k	6.3%
$100k–$150k	5.2%
$150k–$200k	6.3%
$200k+	1.0%
Median income	$32,000

Housing

Home values

Under $50k 55.3%

$50k–$100k 15.1%

$100k–$150k 10.1%

$150k–$200k 10.1%

$200k–$300k 5.0%

$300k–$500k 3.8%

$1M+ 0.6%

Housing overview

Metric	Value
Median home value	$48,100
Median rent / month	$578
Owner occupied	82.8%
Renter occupied	17.2%
Vacant	23.2%
Single-family detached	88.8%
Large apartment buildings	0.0%
Mobile homes	4.0%
Median rooms	5.7
Avg household size (owned)	2.48

Year built

Era	%
2020 or later	0.0%
2010–2019	7.6%
2000–2009	4.8%
1990–1999	6.4%
1980–1989	4.8%
1970–1979	8.4%
1960–1969	4.4%
1950–1959	2.0%
1940–1949	1.6%
1939 or earlier	60.0%

Bedrooms

Size	% of units
No bedroom (studio)	1.2%
1 bedroom	6.8%
2 bedrooms	48.0%
3 bedrooms	36.8%
4 bedrooms	7.2%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	1.6%
1 vehicle	18.2%
2 vehicles	25.5%
3 or more	54.7%

Heating fuel

Fuel type	%
Utility gas	1.0%
Electricity	27.6%
Propane / LP gas	64.1%
Wood	7.3%

Households & families

Household type	Count	%
Married-couple family	90	46.9%
Cohabiting couple	53	27.6%
Male householder, no spouse	30	15.6%
Female householder, no spouse	19	9.9%
Households with children under 18	37	19.3%
Households with seniors (65+)	87	45.3%
Average household size	2.28

Marital status

Status	Male	Female
Never married	24.6%	21.3%
Married	46.8%	53.2%
Separated	1.0%	0.0%
Widowed	0.0%	3.7%
Divorced	27.6%	21.8%

Education

Less than 9th grade 0.0%

Some HS, no diploma 14.6%

HS graduate 47.5%

Some college, no degree 9.3%

Associate's degree 16.7%

Bachelor's degree 10.1%

Graduate / professional 1.8%

Metric	%
HS diploma or higher	85.4%
Bachelor's or higher	11.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	39	61.9%
High school	12	19.0%
College / grad school	12	19.0%

Employment

Industry of employment

Agriculture & mining 23.8%

Arts, food & hospitality 23.8%

Other services 16.6%

Education & healthcare 8.1%

Finance & real estate 6.8%

Construction 6.4%

Manufacturing 4.3%

Retail trade 3.0%

Public administration 2.6%

Information 2.1%

Transportation & utilities 1.3%

Professional & management 1.3%

Occupation

Category	%
Management, business & arts	32.3%
Service	21.7%
Sales & office	12.3%
Natural resources & construction	29.4%
Production & transportation	4.3%

Employment type

Type	%
Private sector	57.4%
Government	12.8%
Self-employed	28.9%
Unpaid family workers	0.9%

Commute

Method	%
Drive alone	85.1%
Carpool	4.3%
Public transit	0.0%
Walk	2.1%
Other means	0.0%
Avg commute (minutes)	23.9

Poverty

All people 25.6%

Under 18 years 24.0%

18 and over 25.9%

Married-couple families 16.7%

Female-led households 20.0%

Income support

Source	% of households
Social Security	50.0%
Retirement income	18.8%
Supplemental Security	9.4%
Cash public assistance	4.2%
Food stamps / SNAP	10.4%

Health indicators

Condition	%
High blood pressure	40.7%
High cholesterol	37.2%
Heart disease	9.6%
Stroke	4.4%
Asthma	9.5%
Arthritis	31.6%
Kidney disease	4.0%
Pulmonary disease	9.4%
Cancer	8.9%

Behavior / access	%
Binge drinking	18.1%
No physical activity	27.4%
Less than 7 hrs sleep	30.8%
Fair or poor health	16.4%
Poor mental health	13.0%
Poor physical health	11.9%
No health insurance	9.6%
Visited doctor (checkup)	77.5%
Visited dentist	62.3%
Cholesterol screening	89.5%
Teeth loss	15.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	36	9.9%

Disability	%
Any disability	8.7%
Under 18	0.0%
18–64 years	9.2%
65 and over	12.9%

Health insurance coverage

Type	%
Private insurance	42.7%
Public insurance	56.2%
Uninsured under 19	6.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	409	93.4%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	438	100.0%
Born in same state	438	100.0%
Born in different state	266	60.7%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
French	55	12.6%
Polish	51	11.6%
Italian	20	4.6%
Arab	13	3%

Ancestry	Count	%
Irish	5	1.1%
English	4	0.9%
Norwegian	4	0.9%

Technology access

Metric	% of households
Computer access	43.8%
Internet access	90.6%

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

Frequently asked questions

What ZIP codes does Grand River, IA have?

Grand River, IA has one ZIP code: 50108. Each ZIP code serves a distinct delivery area within the city and surrounding region.