52640 ZIP Code — Morning Sun, IA

Louisa County, Iowa

ZIP code 52640 is located in Morning Sun, Iowa, within Louisa County. It covers approximately 68.34 square miles and serves a population of 1,366 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 319.

About ZIP code 52640

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 $124,500. Owner-occupancy is high at 90%, well above the national average.

Median household income is $73,264. The poverty rate of 6% is below the national average. 42% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 21 minutes is near the national average.

College attainment at 13% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 52640 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

1,366

population

68.34

sq mi land

Standard

ZIP type

Central (CT)

timezone

52640 ZIP code map

Cities in ZIP code 52640

Below are the cities the US Postal Service accepts for ZIP code 52640. Using any city not on this list may result in mail delivery delays.

City	Status
Morning Sun	Preferred

Nearby ZIP codes

52659 Winfield (8.4 mi) 52644 Mount Union (8.5 mi) 52653 Wapello (9 mi) 52637 Mediapolis (9.6 mi) 52650 Sperry (12.4 mi) 52646 Oakville (13.2 mi) 52621 Crawfordsville (14.3 mi) 52738 Columbus Junction (14.4 mi) 52645 New London (14.7 mi) 52641 Mount Pleasant (17.1 mi) 52754 Letts (17.5 mi) 52638 Middletown (17.5 mi)

Demographics updated 05/2026

Population
Total population	1,366
Population density	20 / sq mi
State FIPS	19
County FIPS	115

Geography
Land area	68.34 sq mi
Water area	0.02 sq mi
Latitude	41.0961
Longitude	-91.2840
Timezone	Central (CT)
Area code	319

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	30.3%	39.2%	40.1%
$50k – $100k	30.5%	36.2%	33.4%
$100k – $200k	34.3%	20.8%	21.5%
Over $200k	4.9%	3.8%	5.0%

Demographics & statistics

1,366

Population

People per sq mi

44.4

Median age

$73,264

Median household income

$36,371

Per capita income

$124,500

Median home value

$831

Median monthly rent

90.0%

Home ownership

5.8%

Poverty rate

0.9%

Unemployment

516

Housing units

12.9%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

111

35–44

108

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	288	21.1%
18 and over	1,078	78.9%
65 and over	336	24.6%
Median age	44.4 years

Race & ethnicity

White 96.6%

Two or more races 3.4%

Group	Count	%
White	1,320	96.6%
Two or more races	46	3.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	30.3%	39.2%	40.1%
$50k – $100k	30.5%	36.2%	33.4%
$100k – $200k	34.3%	20.8%	21.5%
Over $200k	4.9%	3.8%	5.0%

Under $10k 1.4%

$10k–$15k 2.5%

$15k–$25k 3.1%

$25k–$35k 7.6%

$35k–$50k 12.1%

$50k–$75k 25.6%

$75k–$100k 9.8%

$100k–$150k 23.5%

$150k–$200k 10.2%

$200k+ 4.1%

Range	% of households
Under $10k	1.4%
$10k–$15k	2.5%
$15k–$25k	3.1%
$25k–$35k	7.6%
$35k–$50k	12.1%
$50k–$75k	25.6%
$75k–$100k	9.8%
$100k–$150k	23.5%
$150k–$200k	10.2%
$200k+	4.1%
Median income	$73,264

Housing

Home values

Under $50k 13.5%

$50k–$100k 24.8%

$100k–$150k 16.1%

$150k–$200k 15.9%

$200k–$300k 12.0%

$300k–$500k 10.7%

$500k–$1M 7.2%

Housing overview

Metric	Value
Median home value	$124,500
Median rent / month	$831
Owner occupied	90.0%
Renter occupied	10.0%
Vacant	9.9%
Single-family detached	89.4%
Large apartment buildings	0.0%
Mobile homes	7.4%
Median rooms	6.5
Avg household size (owned)	2.55

Year built

Era	%
2020 or later	0.0%
2010–2019	6.7%
2000–2009	6.7%
1990–1999	9.9%
1980–1989	7.1%
1970–1979	8.1%
1960–1969	5.6%
1950–1959	6.7%
1940–1949	9.3%
1939 or earlier	39.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	1.6%
2 bedrooms	28.4%
3 bedrooms	39.9%
4 bedrooms	18.3%
5+ bedrooms	11.8%

Vehicles per household

Vehicles	% of households
No vehicle	0.8%
1 vehicle	11.5%
2 vehicles	45.0%
3 or more	42.7%

Heating fuel

Fuel type	%
Utility gas	52.1%
Electricity	11.2%
Propane / LP gas	29.0%
Fuel oil	0.6%
Wood	6.8%

Households & families

Household type	Count	%
Married-couple family	360	70.5%
Cohabiting couple	25	4.9%
Male householder, no spouse	48	9.4%
Female householder, no spouse	78	15.3%
Households with children under 18	138	27.0%
Households with seniors (65+)	203	39.7%
Average household size	2.58

Marital status

Status	Male	Female
Never married	25.3%	15.1%
Married	64.5%	62.5%
Separated	0.0%	0.0%
Widowed	3.0%	14.5%
Divorced	7.2%	7.9%

Education

Less than 9th grade 0.8%

Some HS, no diploma 8.3%

HS graduate 45.3%

Some college, no degree 19.6%

Associate's degree 13.0%

Bachelor's degree 11.5%

Graduate / professional 1.4%

Metric	%
HS diploma or higher	90.9%
Bachelor's or higher	12.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	15	4.9%
Kindergarten	14	4.6%
Elementary school	128	42.0%
High school	87	28.5%
College / grad school	61	20.0%

Employment

Industry of employment

Education & healthcare 24.1%

Retail trade 14.5%

Manufacturing 11.3%

Agriculture & mining 7.9%

Transportation & utilities 7.9%

Construction 7.0%

Professional & management 5.6%

Arts, food & hospitality 4.6%

Finance & real estate 4.4%

Wholesale trade 4.0%

Public administration 4.0%

Information 2.4%

Other services 2.3%

Occupation

Category	%
Management, business & arts	27.4%
Service	20.3%
Sales & office	15.8%
Natural resources & construction	14.8%
Production & transportation	21.8%

Employment type

Type	%
Private sector	80.8%
Government	12.3%
Self-employed	6.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	88.7%
Carpool	5.9%
Public transit	0.0%
Walk	0.0%
Work from home	3.4%
Other means	2.0%
Avg commute (minutes)	21.1

Poverty

All people 5.8%

Under 18 years 9.0%

18 and over 4.8%

Married-couple families 2.8%

Female-led households 8.7%

Income support

Source	% of households
Social Security	41.5%
Retirement income	22.5%
Supplemental Security	3.7%
Cash public assistance	0.8%
Food stamps / SNAP	4.1%

Health indicators

Condition	%
Obesity	36.7%
High blood pressure	33.9%
High cholesterol	32.9%
Diabetes	10.4%
Heart disease	7.3%
Stroke	3.4%
Asthma	9.6%
Arthritis	25.8%
Kidney disease	3.1%
Pulmonary disease	7.6%
Cancer	7.6%

Behavior / access	%
Smoking	19.2%
Binge drinking	21.4%
No physical activity	24.7%
Less than 7 hrs sleep	31.7%
Depression	18.4%
Fair or poor health	14.0%
Poor mental health	13.9%
Poor physical health	10.4%
No health insurance	10.3%
Visited doctor (checkup)	75.0%
Visited dentist	65.6%
Cholesterol screening	88.3%
Teeth loss	14.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	63	5.8%

Disability	%
Any disability	15.1%
Under 18	1.7%
18–64 years	8.4%
65 and over	45.1%

Health insurance coverage

Type	%
Private insurance	75.2%
Public insurance	37.2%
No insurance	4.1%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,305	95.5%
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)	1,366	100.0%
Born in same state	1,364	99.9%
Born in different state	1,224	89.6%
Foreign born	2	0.1%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Arab	110	8.1%
Italian	99	7.2%
French	83	6.1%

Ancestry	Count	%
English	28	2%
Polish	18	1.3%

Technology access

Metric	% of households
Computer access	37.4%
Internet access	94.1%

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

Frequently asked questions about ZIP code 52640

What city is ZIP code 52640 in?

ZIP code 52640 is primarily assigned to Morning Sun, Iowa.

What county is ZIP code 52640 in?

ZIP code 52640 falls within Louisa County, Iowa.

Is ZIP code 52640 mostly owner-occupied?

90% of occupied units in ZIP code 52640 are owner-occupied, well above the national average.

How educated is the population of ZIP code 52640?

13% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 52640 have a large retiree population?

42% of households in ZIP code 52640 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 52640?

The median home value in ZIP code 52640 is $124,500.

What timezone is ZIP code 52640 in?

ZIP code 52640 observes the CST timezone.