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Iowa ZIP Codes
Grundy County
Holland, IA
50642
50642 ZIP Code — Holland, IA
Grundy County, Iowa
ZIP code 50642 is located in
Holland ,
Iowa ,
within Grundy County .
It covers approximately 31.33 square miles and serves a population of
498 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 319 .
About ZIP code 50642
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $205,300. Owner-occupancy is high at 84%, well above the national average.
Median household income is $102,578. The poverty rate of 4% is below the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 22 minutes is near the national average.
College attainment at 21% is below the national average, consistent with a trades and production-oriented local economy.
Notable community characteristics include a notable veteran presence at 14% of civilians, above the national average of 7%.
Overall, ZIP code 50642 reflects a community defined by a strong veteran community and high homeownership.
50642 ZIP code map
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Cities in ZIP code 50642
Below are the cities the US Postal Service accepts for ZIP code 50642. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
498
Population density
16 / sq mi
State FIPS
19
County FIPS
075
Geography
Land area
31.33 sq mi
Water area
0.01 sq mi
Latitude
42.4341
Longitude
-92.8123
Timezone
Central (CT)
Area code
319
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
24.7%
32.5%
40.1%
$50k – $100k
42.2%
38.6%
33.4%
$100k – $200k
21.3%
22.8%
21.5%
Over $200k
11.8%
6.2%
5.0%
Demographics & statistics
$102,578
Median household income
$205,300
Median home value
$1,154
Median monthly rent
20.9%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 110 22.1%
18 and over 388 77.9%
65 and over 99 19.9%
Median age 41.8 years
Race & ethnicity
Group Count %
White 492 97.6%
Hispanic or Latino 6 1.2%
Two or more races 6 1.2%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
24.7%
32.5%
40.1%
$50k – $100k
42.2%
38.6%
33.4%
$100k – $200k
21.3%
22.8%
21.5%
Over $200k
11.8%
6.2%
5.0%
Range % of households
Under $10k 0.9%
$10k–$15k 0.9%
$15k–$25k 0.9%
$25k–$35k 2.3%
$35k–$50k 7.5%
$50k–$75k 18.8%
$75k–$100k 18.3%
$100k–$150k 20.2%
$150k–$200k 8.9%
$200k+ 21.1%
Median income $102,578
Housing
Housing overview
Metric Value
Median home value $205,300
Median rent / month $1,154
Owner occupied 83.6%
Renter occupied 16.4%
Vacant 4.1%
Single-family detached 98.2%
Large apartment buildings 0.0%
Mobile homes 0.0%
Median rooms 7.7
Avg household size (owned) 2.32
Year built
Era %
2020 or later 0.0%
2010–2019 0.0%
2000–2009 9.9%
1990–1999 5.9%
1980–1989 3.6%
1970–1979 7.7%
1960–1969 8.1%
1950–1959 6.3%
1940–1949 4.1%
1939 or earlier 54.5%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 1.8%
2 bedrooms 13.1%
3 bedrooms 26.6%
4 bedrooms 49.5%
5+ bedrooms 9.0%
Vehicles per household
Vehicles % of households
No vehicle 0.5%
1 vehicle 5.6%
2 vehicles 62.4%
3 or more 31.5%
Heating fuel
Fuel type %
Utility gas 75.1%
Electricity 1.9%
Propane / LP gas 23.0%
Households & families
Household type Count %
Married-couple family 171 80.3%
Cohabiting couple 0 0.0%
Male householder, no spouse 22 10.3%
Female householder, no spouse 20 9.4%
Households with children under 18 71 33.3%
Households with seniors (65+) 76 35.7%
Average household size 2.34
Marital status
Status Male Female
Never married 20.3% 13.3%
Married 73.2% 75.4%
Separated 2.2% 4.1%
Widowed 2.2% 4.1%
Divorced 2.2% 3.1%
Education
Some college, no degree
9.9%
Graduate / professional
9.1%
Metric %
HS diploma or higher 98.1%
Bachelor's or higher 20.9%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 17 14.5%
Kindergarten 0 0.0%
Elementary school 45 38.5%
High school 39 33.3%
College / grad school 16 13.7%
Employment
Industry of employment
Education & healthcare
33.2%
Transportation & utilities
7.0%
Professional & management
5.7%
Finance & real estate
3.0%
Agriculture & mining
1.0%
Arts, food & hospitality
1.0%
Public administration
0.3%
Occupation
Category %
Management, business & arts 31.2%
Service 12.4%
Sales & office 17.1%
Natural resources & construction 22.1%
Production & transportation 17.1%
Employment type
Type %
Private sector 67.4%
Government 13.1%
Self-employed 19.5%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 75.6%
Carpool 7.1%
Public transit 0.3%
Walk 0.0%
Work from home 16.9%
Other means 0.0%
Avg commute (minutes) 22.4
Poverty
Married-couple families
0.0%
Female-led households
100.0%
Income support
Source % of households
Social Security 20.7%
Retirement income 14.1%
Supplemental Security 4.2%
Cash public assistance 5.6%
Food stamps / SNAP 6.6%
Health indicators
Condition %
Obesity 35.7%
High blood pressure 30.9%
High cholesterol 32.0%
Diabetes 8.1%
Heart disease 5.8%
Stroke 2.5%
Asthma 8.7%
Arthritis 22.0%
Kidney disease 2.4%
Pulmonary disease 5.4%
Cancer 6.8%
Behavior / access %
Smoking 15.5%
Binge drinking 23.2%
No physical activity 20.2%
Less than 7 hrs sleep 29.9%
Depression 17.1%
Fair or poor health 10.1%
Poor mental health 12.9%
Poor physical health 8.2%
No health insurance 8.3%
Visited doctor (checkup) 74.4%
Visited dentist 68.0%
Cholesterol screening 88.8%
Teeth loss 10.4%
Veterans & disability
Veterans Count %
Civilian veterans 55 14.2%
Disability %
Any disability 6.4%
Under 18 0.9%
18–64 years 7.6%
65 and over 9.1%
Health insurance coverage
Type %
Private insurance 77.9%
Public insurance 37.8%
No insurance 2.0%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 476 95.6%
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) 498 100.0%
Born in same state 498 100.0%
Born in different state 409 82.1%
Foreign born 0 0.0%
Naturalized citizen 0 0.0%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
English 44 8.8%
Polish 33 6.6%
Italian 22 4.4%
Ancestry Count %
French 20 4%
Arab 13 2.6%
Dutch 11 2.2%
Technology access
Metric % of households
Computer access 42.8%
Internet access 96.2%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 50642
What city is ZIP code 50642 in?
ZIP code 50642 is primarily assigned to Holland, Iowa.
What county is ZIP code 50642 in?
ZIP code 50642 falls within Grundy County, Iowa.
Is ZIP code 50642 mostly owner-occupied?
84% of occupied units in ZIP code 50642 are owner-occupied, well above the national average.
Does ZIP code 50642 have a large veteran population?
14% of civilians in ZIP code 50642 are veterans, above the national average of ~7%.
What is the median household income in ZIP code 50642?
The median household income in ZIP code 50642 is $102,578, above the national median of ~$75,000.
What is the population of ZIP code 50642?
ZIP code 50642 has an estimated population of 498 residents, with a density of 16 people per square mile.
What timezone is ZIP code 50642 in?
ZIP code 50642 observes the CST timezone.
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