Grundy Center ZIP Codes — Grundy County, IA

There is one unique ZIP code in Grundy Center, Iowa and it is 50638. Area code: 319.
1
ZIP codes
93.98
sq mi land
0.00
sq mi water
319
area code
Grundy Center, IA ZIP code map

About Grundy Center, IA

Grundy Center, Iowa, is a charming small city that serves as the county seat of Grundy County. Known for its friendly community and vibrant local culture, it provides a welcoming atmosphere for both residents and visitors. The city combines the tranquility of rural life with essential amenities and community events that strengthen its bonds.

Location & geography

Grundy Center is located in the northeastern part of Iowa, surrounded by beautiful landscapes and farmland. It is approximately 50 miles southwest of Cedar Rapids and 35 miles north of Waterloo, making it accessible to larger urban areas while maintaining its quaint feel. The city spans a land area of 93.98 square miles with no designated water areas, highlighting its primarily terrestrial terrain.

Community & economy

The character of Grundy Center reflects close-knit community values, where residents take pride in their hometown. The local economy is supported by various industries, including agriculture, manufacturing, and retail, fostering a diverse job market. Daily life in Grundy Center is filled with community events, recreational activities, and a strong emphasis on family-friendly gatherings.

Transportation

Grundy Center is conveniently located near several major highways, including U.S. Route 20 and Iowa State Route 14, providing easy access to neighboring towns and cities. The nearest major airport is Waterloo Regional Airport, located about 30 miles to the south, servicing both domestic and regional flights. Public transit options may be limited, making personal vehicles a primary mode of transportation for residents.

History

Grundy Center was established in the mid-19th century and has since served as a hub for agriculture and commerce within Grundy County. Historically, the town has focused on key industries such as farming and manufacturing, which have shaped its economic landscape. Notable events in the city’s history include annual community festivals that celebrate local heritage and foster community spirit.

Did you know?

One surprising fact about Grundy Center is that it hosts the annual Grundy County Corn Carnival, a beloved event that celebrates the local agricultural heritage and attracts visitors from surrounding areas. The city is also known for its unique downtown architecture, showcasing a blend of historical and modern designs.

ZIP codes for Grundy Center, IA (1)
ZIP code City County Map
50638 Grundy Center Grundy View map

Demographics & statistics

3,330
Population
37.5
Median age
$81,446
Median household income
$36,202
Per capita income
$157,100
Median home value
$644
Median monthly rent
80.8%
Home ownership
8.2%
Poverty rate
3.1%
Unemployment
1,115
Housing units
27.7%
Bachelor's or higher

Age distribution

Male Female
83
Under 5
97
115
5–9
136
130
10–14
152
106
15–19
124
71
20–24
84
171
25–34
200
242
35–44
285
128
45–54
151
109
55–59
129
96
60–64
112
137
65–74
160
105
75–84
124
38
85+
45
← Male
Female →

Age summary

GroupCount%
Under 1885425.6%
18 and over2,47674.4%
65 and over60918.3%
Median age37.5 years

Race & ethnicity

White 96%
Hispanic or Latino 1.6%
Two or more races 0.9%
Other race 0.9%
Asian 0.5%
Black or African American 0.2%
GroupCount%
White3,24796%
Hispanic or Latino531.6%
Two or more races310.9%
Other race290.9%
Asian170.5%
Black or African American60.2%

Household income

Under $10k 2.4%
$10k–$15k 4.2%
$15k–$25k 8.0%
$25k–$35k 4.9%
$35k–$50k 6.1%
$50k–$75k 16.9%
$75k–$100k 24.5%
$100k–$150k 17.5%
$150k–$200k 10.7%
$200k+ 4.8%
Range% of households
Under $10k2.4%
$10k–$15k4.2%
$15k–$25k8.0%
$25k–$35k4.9%
$35k–$50k6.1%
$50k–$75k16.9%
$75k–$100k24.5%
$100k–$150k17.5%
$150k–$200k10.7%
$200k+4.8%
Median income$81,446

Housing

Home values

Under $50k 5.1%
$50k–$100k 15.2%
$100k–$150k 25.7%
$150k–$200k 24.9%
$200k–$300k 15.7%
$300k–$500k 11.4%
$500k–$1M 1.0%
$1M+ 1.0%

Housing overview

MetricValue
Median home value$157,100
Median rent / month$644
Owner occupied80.8%
Renter occupied19.2%
Vacant4.7%
Single-family detached87.5%
Large apartment buildings1.3%
Mobile homes1.0%
Median rooms6.6
Avg household size (owned)2.63

Year built

Era%
2020 or later0.1%
2010–20194.1%
2000–20095.9%
1990–19995.9%
1980–19893.4%
1970–197917.7%
1960–19698.8%
1950–195913.6%
1940–19498.3%
1939 or earlier32.3%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom7.9%
2 bedrooms19.1%
3 bedrooms43.6%
4 bedrooms23.4%
5+ bedrooms6.0%

Vehicles per household

Vehicles% of households
No vehicle2.9%
1 vehicle23.7%
2 vehicles44.2%
3 or more29.2%

Heating fuel

Fuel type%
Utility gas67.8%
Electricity15.1%
Propane / LP gas14.0%
Fuel oil1.4%
Wood1.2%

Households & families

Household typeCount%
Married-couple family69053.1%
Cohabiting couple1259.6%
Male householder, no spouse14711.3%
Female householder, no spouse33826.0%
Households with children under 1845535.0%
Households with seniors (65+)42832.9%
Average household size2.50

Marital status

StatusMaleFemale
Never married30.2%26.7%
Married57.6%51.5%
Separated1.4%1.2%
Widowed1.1%10.3%
Divorced9.7%10.2%

Education

Less than 9th grade 1.6%
Some HS, no diploma 4.0%
HS graduate 35.3%
Some college, no degree 16.9%
Associate's degree 14.4%
Bachelor's degree 22.1%
Graduate / professional 5.6%
Metric%
HS diploma or higher94.4%
Bachelor's or higher27.7%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool768.7%
Kindergarten495.6%
Elementary school42548.9%
High school22926.3%
College / grad school9110.5%

Employment

Industry of employment

Education & healthcare 28.0%
Manufacturing 15.4%
Construction 11.1%
Agriculture & mining 9.9%
Retail trade 7.8%
Other services 5.5%
Arts, food & hospitality 5.3%
Professional & management 4.1%
Transportation & utilities 4.0%
Finance & real estate 3.3%
Wholesale trade 2.7%
Public administration 1.9%
Information 0.9%

Occupation

Category%
Management, business & arts42.3%
Service10.8%
Sales & office14.9%
Natural resources & construction12.3%
Production & transportation19.7%

Employment type

Type%
Private sector85.2%
Government9.0%
Self-employed5.8%
Unpaid family workers0.0%

Commute

Method%
Drive alone81.7%
Carpool6.3%
Public transit0.0%
Walk2.5%
Other means0.0%
Avg commute (minutes)22.7

Poverty

All people 8.2%
Under 18 years 11.6%
18 and over 7.1%
Married-couple families 2.0%
Female-led households 32.3%

Income support

Source% of households
Social Security35.9%
Retirement income26.3%
Supplemental Security3.3%
Cash public assistance0.8%
Food stamps / SNAP6.8%

Health indicators

Condition%
High blood pressure35.7%
High cholesterol35.8%
Heart disease7.3%
Stroke3.2%
Asthma8.8%
Arthritis26.8%
Kidney disease3.1%
Pulmonary disease6.7%
Cancer8.7%
Behavior / access%
Binge drinking19.7%
No physical activity22.7%
Less than 7 hrs sleep28.7%
Fair or poor health12.0%
Poor mental health12.3%
Poor physical health9.3%
No health insurance8.4%
Visited doctor (checkup)77.2%
Visited dentist67.2%
Cholesterol screening90.2%
Teeth loss11.9%

Veterans & disability

VeteransCount%
Civilian veterans1154.6%
Disability%
Any disability8.7%
Under 182.6%
18–64 years7.8%
65 and over20.4%

Health insurance coverage

Type%
Private insurance77.6%
Public insurance30.7%
Uninsured under 191.1%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only3,15094.6%
Spanish210.7%
Other Indo-European00.0%
Asian & Pacific Islander110.3%
Other languages100.3%

Place of birth & citizenship

OriginCount%
Native born (US)3,30299.2%
Born in same state3,27098.2%
Born in different state2,84285.3%
Foreign born321.0%
Naturalized citizen280.8%
Not a US citizen517.9%

Ancestry

AncestryCount%
Arab3289.8%
Italian2868.6%
French2758.3%
AncestryCount%
Polish1805.4%
English972.9%
Dutch90.3%

Technology access

Metric% of households
Computer access39.0%
Internet access88.6%

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

Frequently asked questions
What ZIP codes does Grundy Center, IA have?
Grundy Center, IA has one ZIP code: 50638. Each ZIP code serves a distinct delivery area within the city and surrounding region.
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