50645 ZIP Code — Ionia, IA

Chickasaw County, Iowa

ZIP code 50645 is located in Ionia, Iowa, within Chickasaw County. It covers approximately 85.63 square miles and serves a population of 1,391 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 641.

About ZIP code 50645

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 $109,700. Owner-occupancy is high at 88%, well above the national average.

Median household income is $64,531. 34% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is natural resources, construction, and trades, with education and healthcare as the leading industry. The average commute of 25 minutes is near the national average.

College attainment at 12% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (20%) compared to national benchmarks.

Overall, ZIP code 50645 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

1,391

population

85.63

sq mi land

Standard

ZIP type

Central (CT)

timezone

50645 ZIP code map

Cities in ZIP code 50645

Below are the cities the US Postal Service accepts for ZIP code 50645. Using any city not on this list may result in mail delivery delays.

City	Status
Ionia	Acceptable
Ionia	Preferred

Nearby ZIP codes

50658 Nashua (6.6 mi) 50659 New Hampton (7.1 mi) 50603 Alta Vista (11.1 mi) 50666 Plainfield (12.1 mi) 50630 Fredericksburg (12.1 mi) 50616 Charles City (12.8 mi) 52154 Lawler (15.3 mi) 50676 Tripoli (16.1 mi) 50677 Waverly (16.4 mi) 50460 Orchard (19.3 mi) 50619 Clarksville (19.5 mi) 50435 Floyd (19.8 mi)

Demographics updated 05/2026

Population
Total population	1,391
Population density	16 / sq mi
State FIPS	19
County FIPS	037

Geography
Land area	85.63 sq mi
Water area	0.21 sq mi
Latitude	43.0167
Longitude	-92.4359
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	49.1%	43.2%	40.1%
$50k – $100k	35.3%	35.0%	33.4%
$100k – $200k	15.6%	19.1%	21.5%
Over $200k	0.0%	2.7%	5.0%

Demographics & statistics

1,391

Population

People per sq mi

51.5

Median age

$64,531

Median household income

$30,398

Per capita income

$109,700

Median home value

$700

Median monthly rent

88.4%

Home ownership

9.8%

Poverty rate

2.1%

Unemployment

671

Housing units

11.6%

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	291	20.9%
18 and over	1,100	79.1%
65 and over	339	24.4%
Median age	51.5 years

Race & ethnicity

White 95.9%

Black or African American 3.9%

Asian 0.1%

Two or more races 0.1%

Group	Count	%
White	1,334	95.9%
Black or African American	54	3.9%
Asian	2	0.1%
Two or more races	1	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	49.1%	43.2%	40.1%
$50k – $100k	35.3%	35.0%	33.4%
$100k – $200k	15.6%	19.1%	21.5%
Over $200k	0.0%	2.7%	5.0%

Under $10k 14.6%

$10k–$15k 3.2%

$15k–$25k 3.8%

$25k–$35k 4.8%

$35k–$50k 17.0%

$50k–$75k 21.0%

$75k–$100k 13.8%

$100k–$150k 15.3%

$150k–$200k 0.7%

$200k+ 5.8%

Range	% of households
Under $10k	14.6%
$10k–$15k	3.2%
$15k–$25k	3.8%
$25k–$35k	4.8%
$35k–$50k	17.0%
$50k–$75k	21.0%
$75k–$100k	13.8%
$100k–$150k	15.3%
$150k–$200k	0.7%
$200k+	5.8%
Median income	$64,531

Housing

Home values

Under $50k 9.8%

$50k–$100k 37.3%

$100k–$150k 13.0%

$150k–$200k 13.2%

$200k–$300k 15.8%

$300k–$500k 9.4%

$500k–$1M 1.5%

Housing overview

Metric	Value
Median home value	$109,700
Median rent / month	$700
Owner occupied	88.4%
Renter occupied	11.6%
Vacant	18.9%
Single-family detached	95.0%
Large apartment buildings	0.0%
Mobile homes	0.3%
Median rooms	6.7
Avg household size (owned)	2.18

Year built

Era	%
2020 or later	0.0%
2010–2019	4.9%
2000–2009	1.5%
1990–1999	3.9%
1980–1989	5.1%
1970–1979	10.7%
1960–1969	5.5%
1950–1959	17.8%
1940–1949	6.6%
1939 or earlier	44.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	8.1%
2 bedrooms	15.1%
3 bedrooms	40.9%
4 bedrooms	33.7%
5+ bedrooms	2.2%

Vehicles per household

Vehicles	% of households
No vehicle	16.6%
1 vehicle	10.0%
2 vehicles	37.8%
3 or more	35.6%

Heating fuel

Fuel type	%
Utility gas	30.0%
Electricity	8.8%
Propane / LP gas	57.6%
Fuel oil	0.5%
Wood	1.7%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	340	56.6%
Cohabiting couple	44	7.3%
Male householder, no spouse	135	22.5%
Female householder, no spouse	82	13.6%
Households with children under 18	99	16.5%
Households with seniors (65+)	191	31.8%
Average household size	2.31

Marital status

Status	Male	Female
Never married	24.9%	15.6%
Married	56.9%	66.4%
Separated	0.0%	0.9%
Widowed	0.3%	6.6%
Divorced	17.9%	10.4%

Education

Less than 9th grade 5.0%

Some HS, no diploma 4.2%

HS graduate 50.5%

Some college, no degree 19.5%

Associate's degree 9.2%

Bachelor's degree 9.8%

Graduate / professional 1.8%

Metric	%
HS diploma or higher	90.8%
Bachelor's or higher	11.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	45	14.9%
Kindergarten	38	12.5%
Elementary school	124	40.9%
High school	46	15.2%
College / grad school	50	16.5%

Employment

Industry of employment

Education & healthcare 23.7%

Manufacturing 20.5%

Agriculture & mining 16.5%

Finance & real estate 9.1%

Other services 6.4%

Construction 6.1%

Retail trade 4.5%

Professional & management 4.2%

Transportation & utilities 3.5%

Wholesale trade 3.0%

Public administration 2.0%

Arts, food & hospitality 0.5%

Occupation

Category	%
Management, business & arts	16.0%
Service	17.1%
Sales & office	18.5%
Natural resources & construction	27.2%
Production & transportation	21.2%

Employment type

Type	%
Private sector	82.5%
Government	7.1%
Self-employed	8.7%
Unpaid family workers	1.7%

Commute

Method	%
Drive alone	72.0%
Carpool	8.6%
Public transit	0.0%
Walk	0.2%
Work from home	16.6%
Other means	2.5%
Avg commute (minutes)	25.0

Poverty

All people 9.8%

Under 18 years 0.3%

18 and over 12.4%

Married-couple families 5.0%

Female-led households 6.5%

Income support

Source	% of households
Social Security	34.1%
Retirement income	31.4%
Supplemental Security	1.3%
Cash public assistance	0.3%
Food stamps / SNAP	5.0%

Health indicators

Condition	%
Obesity	38.4%
High blood pressure	36.6%
High cholesterol	33.0%
Diabetes	10.9%
Heart disease	7.4%
Stroke	3.4%
Asthma	9.3%
Arthritis	27.0%
Kidney disease	3.1%
Pulmonary disease	7.9%
Cancer	7.2%

Behavior / access	%
Smoking	20.3%
Binge drinking	22.5%
No physical activity	25.2%
Less than 7 hrs sleep	32.0%
Depression	17.5%
Fair or poor health	14.1%
Poor mental health	13.5%
Poor physical health	10.7%
No health insurance	10.0%
Visited doctor (checkup)	72.8%
Visited dentist	64.6%
Cholesterol screening	88.9%
Teeth loss	14.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	61	5.5%

Disability	%
Any disability	12.7%
Under 18	3.4%
18–64 years	8.8%
65 and over	29.5%

Health insurance coverage

Type	%
Private insurance	68.8%
Public insurance	44.7%
No insurance	8.8%
Uninsured under 19	21.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,339	96.3%
Spanish	36	2.7%
Other Indo-European	15	1.1%
Asian & Pacific Islander	21	1.6%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,389	99.9%
Born in same state	1,389	99.9%
Born in different state	1,212	87.1%
Foreign born	0	0.0%
Naturalized citizen	2	0.1%
Not a US citizen	2	100.0%

Ancestry

Ancestry	Count	%
Italian	190	13.7%
Arab	149	10.7%
Polish	121	8.7%

Ancestry	Count	%
French	88	6.3%
English	27	1.9%
Irish	1	0.1%

Technology access

Metric	% of households
Computer access	43.2%
Internet access	77.4%

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

Frequently asked questions about ZIP code 50645

What city is ZIP code 50645 in?

ZIP code 50645 is primarily assigned to Ionia, Iowa.

What county is ZIP code 50645 in?

ZIP code 50645 falls within Chickasaw County, Iowa.

Is ZIP code 50645 mostly owner-occupied?

88% of occupied units in ZIP code 50645 are owner-occupied, well above the national average.

How educated is the population of ZIP code 50645?

12% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What is the typical home value in ZIP code 50645?

The median home value in ZIP code 50645 is $109,700.

What is the population of ZIP code 50645?

ZIP code 50645 has an estimated population of 1,391 residents, with a density of 16 people per square mile.

What timezone is ZIP code 50645 in?

ZIP code 50645 observes the CST timezone.