50258 ZIP Code — Union, IA

Hardin County, Iowa

ZIP code 50258 is located in Union, Iowa, within Hardin County. It covers approximately 53.97 square miles and serves a population of 831 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 641.

About ZIP code 50258

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 $106,300. Owner-occupancy is high at 90%, well above the national average.

Median household income is $78,869. 32% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is sales and office, with education and healthcare as the leading industry. The average commute of 16 minutes is near the national average.

Educational attainment is near the national average, with 27% of residents holding a bachelor's degree or higher.

Overall, ZIP code 50258 reflects a community defined by high homeownership and a significant Social Security-dependent population.

831

population

53.97

sq mi land

Standard

ZIP type

Central (CT)

timezone

50258 ZIP code map

Cities in ZIP code 50258

Below are the cities the US Postal Service accepts for ZIP code 50258. Using any city not on this list may result in mail delivery delays.

City	Status
Union	Preferred

Nearby ZIP codes

50148 Liscomb (5.5 mi) 50206 New Providence (6.2 mi) 50005 Albion (6.6 mi) 50051 Clemons (6.7 mi) 50621 Conrad (8 mi) 50239 Saint Anthony (8.3 mi) 50627 Eldora (8.5 mi) 50278 Zearing (12.1 mi) 50122 Hubbard (13.1 mi) 50609 Beaman (13.4 mi) 50158 Marshalltown (13.5 mi) 50672 Steamboat Rock (14.7 mi)

Demographics updated 05/2026

Population
Total population	831
Population density	15 / sq mi
State FIPS	19
County FIPS	083

Geography
Land area	53.97 sq mi
Water area	0.18 sq mi
Latitude	42.2181
Longitude	-93.0759
Timezone	Central (CT)
Area code	641

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	34.3%	44.1%	40.1%
$50k – $100k	42.5%	36.1%	33.4%
$100k – $200k	22.6%	17.6%	21.5%
Over $200k	0.6%	2.3%	5.0%

Demographics & statistics

831

Population

People per sq mi

51.7

Median age

$78,869

Median household income

$35,181

Per capita income

$106,300

Median home value

$639

Median monthly rent

89.6%

Home ownership

13.2%

Poverty rate

1.9%

Unemployment

354

Housing units

27.1%

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	151	18.2%
18 and over	680	81.8%
65 and over	223	26.8%
Median age	51.7 years

Race & ethnicity

White 98.9%

Two or more races 1%

Asian 0.1%

Group	Count	%
White	822	98.9%
Two or more races	8	1%
Asian	1	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	34.3%	44.1%	40.1%
$50k – $100k	42.5%	36.1%	33.4%
$100k – $200k	22.6%	17.6%	21.5%
Over $200k	0.6%	2.3%	5.0%

Under $10k 3.3%

$10k–$15k 3.0%

$15k–$25k 6.3%

$25k–$35k 8.7%

$35k–$50k 11.0%

$50k–$75k 14.3%

$75k–$100k 22.4%

$100k–$150k 15.8%

$150k–$200k 12.2%

$200k+ 3.0%

Range	% of households
Under $10k	3.3%
$10k–$15k	3.0%
$15k–$25k	6.3%
$25k–$35k	8.7%
$35k–$50k	11.0%
$50k–$75k	14.3%
$75k–$100k	22.4%
$100k–$150k	15.8%
$150k–$200k	12.2%
$200k+	3.0%
Median income	$78,869

Housing

Home values

Under $50k 17.0%

$50k–$100k 31.7%

$100k–$150k 10.7%

$150k–$200k 5.7%

$200k–$300k 14.7%

$300k–$500k 7.3%

$500k–$1M 0.7%

$1M+ 12.3%

Housing overview

Metric	Value
Median home value	$106,300
Median rent / month	$639
Owner occupied	89.6%
Renter occupied	10.4%
Vacant	13.9%
Single-family detached	93.6%
Large apartment buildings	0.0%
Mobile homes	2.3%
Median rooms	6.4
Avg household size (owned)	2.34

Year built

Era	%
2020 or later	0.0%
2010–2019	1.8%
2000–2009	5.1%
1990–1999	6.7%
1980–1989	12.6%
1970–1979	15.9%
1960–1969	9.8%
1950–1959	6.2%
1940–1949	9.0%
1939 or earlier	32.9%

Bedrooms

Size	% of units
No bedroom (studio)	2.1%
1 bedroom	4.4%
2 bedrooms	29.0%
3 bedrooms	38.3%
4 bedrooms	15.7%
5+ bedrooms	10.5%

Vehicles per household

Vehicles	% of households
No vehicle	1.5%
1 vehicle	23.0%
2 vehicles	37.3%
3 or more	38.2%

Heating fuel

Fuel type	%
Utility gas	50.7%
Electricity	14.0%
Propane / LP gas	24.8%
Fuel oil	6.3%
Wood	4.2%

Households & families

Household type	Count	%
Married-couple family	200	59.7%
Cohabiting couple	20	6.0%
Male householder, no spouse	51	15.2%
Female householder, no spouse	64	19.1%
Households with children under 18	63	18.8%
Households with seniors (65+)	132	39.4%
Average household size	2.48

Marital status

Status	Male	Female
Never married	27.2%	15.0%
Married	60.2%	66.0%
Separated	0.6%	0.0%
Widowed	6.6%	6.6%
Divorced	5.4%	12.4%

Education

Less than 9th grade 0.3%

Some HS, no diploma 1.3%

HS graduate 31.1%

Some college, no degree 28.6%

Associate's degree 11.6%

Bachelor's degree 24.4%

Graduate / professional 2.7%

Metric	%
HS diploma or higher	98.4%
Bachelor's or higher	27.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	4	4.3%
Kindergarten	4	4.3%
Elementary school	36	38.7%
High school	41	44.1%
College / grad school	8	8.6%

Employment

Industry of employment

Education & healthcare 26.6%

Finance & real estate 17.5%

Retail trade 15.1%

Manufacturing 11.8%

Agriculture & mining 9.2%

Construction 8.1%

Other services 3.3%

Professional & management 3.1%

Transportation & utilities 2.6%

Information 1.1%

Wholesale trade 0.9%

Public administration 0.7%

Arts, food & hospitality 0.2%

Occupation

Category	%
Management, business & arts	24.0%
Service	17.5%
Sales & office	28.8%
Natural resources & construction	14.0%
Production & transportation	15.7%

Employment type

Type	%
Private sector	80.8%
Government	4.4%
Self-employed	14.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	77.3%
Carpool	2.5%
Public transit	0.0%
Walk	7.2%
Work from home	13.0%
Other means	0.0%
Avg commute (minutes)	15.9

Poverty

All people 13.2%

Under 18 years 35.8%

18 and over 8.2%

Married-couple families 1.5%

Female-led households 56.0%

Income support

Source	% of households
Social Security	32.2%
Retirement income	27.8%
Supplemental Security	7.2%
Cash public assistance	9.3%
Food stamps / SNAP	8.4%

Health indicators

Condition	%
Obesity	38.5%
High blood pressure	36.7%
High cholesterol	37.1%
Diabetes	11.4%
Heart disease	7.9%
Stroke	3.4%
Asthma	9.0%
Arthritis	27.9%
Kidney disease	3.2%
Pulmonary disease	7.5%
Cancer	8.3%

Behavior / access	%
Smoking	16.5%
Binge drinking	19.6%
No physical activity	25.2%
Less than 7 hrs sleep	29.9%
Depression	17.0%
Fair or poor health	13.2%
Poor mental health	12.4%
Poor physical health	10.2%
No health insurance	8.6%
Visited doctor (checkup)	75.9%
Visited dentist	67.5%
Cholesterol screening	90.6%
Teeth loss	12.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	65	9.6%

Disability	%
Any disability	8.9%
Under 18	1.3%
18–64 years	3.3%
65 and over	25.6%

Health insurance coverage

Type	%
Private insurance	59.3%
Public insurance	45.7%
No insurance	5.7%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	772	92.9%
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)	812	97.7%
Born in same state	812	97.7%
Born in different state	698	84.0%
Foreign born	0	0.0%
Naturalized citizen	19	2.3%
Not a US citizen	18	94.7%

Ancestry

Ancestry	Count	%
French	148	17.8%
Italian	123	14.8%
Arab	82	9.9%
Polish	61	7.3%

Ancestry	Count	%
Dutch	13	1.6%
English	2	0.2%
German	1	0.1%

Technology access

Metric	% of households
Computer access	40.3%
Internet access	74.9%

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

Frequently asked questions about ZIP code 50258

What city is ZIP code 50258 in?

ZIP code 50258 is primarily assigned to Union, Iowa.

What county is ZIP code 50258 in?

ZIP code 50258 falls within Hardin County, Iowa.

Does ZIP code 50258 have an older population?

27% of residents in ZIP code 50258 are 65 or older, above the national average of ~17%.

Is ZIP code 50258 mostly owner-occupied?

90% of occupied units in ZIP code 50258 are owner-occupied, well above the national average.

What is the typical home value in ZIP code 50258?

The median home value in ZIP code 50258 is $106,300.

Does ZIP code 50258 have a large veteran population?

10% of civilians in ZIP code 50258 are veterans, above the national average of ~7%.

What timezone is ZIP code 50258 in?

ZIP code 50258 observes the CST timezone.