50140 ZIP Code — Lamoni, IA

Decatur County, Iowa

ZIP code 50140 is located in Lamoni, Iowa, within Decatur County. It covers approximately 92.67 square miles and serves a population of 2,973 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 641.

About ZIP code 50140

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 $107,500. Owner-occupancy sits near the national average at 59%.

Median household income is $54,808. Poverty affects 22% of residents, above the national average. 37% 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 16 minutes is near the national average.

Educational attainment is high — 51% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 50140 reflects a community defined by a highly educated population, economic challenges above the national average, and a significant Social Security-dependent population.

2,973

population

92.67

sq mi land

Standard

ZIP type

Central (CT)

timezone

50140 ZIP code map

Cities in ZIP code 50140

Below are the cities the US Postal Service accepts for ZIP code 50140. Using any city not on this list may result in mail delivery delays.

City	Status
Lamoni	Preferred

Nearby ZIP codes

50133 Kellerton (6.3 mi) 50065 Davis City (8.8 mi) 50074 Ellston (9.2 mi) 50067 Decatur (10 mi) 64442 Eagleville (10.8 mi) 64426 Blythedale (10.9 mi) 50108 Grand River (12.7 mi) 50144 Leon (12.9 mi) 50262 Van Wert (15.3 mi) 64632 Cainsville (15.5 mi) 50854 Mount Ayr (15.5 mi) 50103 Garden Grove (18.4 mi)

Demographics updated 05/2026

Population
Total population	2,973
Population density	32 / sq mi
State FIPS	19
County FIPS	053

Geography
Land area	92.67 sq mi
Water area	0.78 sq mi
Latitude	40.6493
Longitude	-93.9532
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	57.6%	50.7%	40.1%
$50k – $100k	25.1%	33.9%	33.4%
$100k – $200k	15.2%	13.2%	21.5%
Over $200k	2.1%	2.1%	5.0%

Demographics & statistics

2,973

Population

People per sq mi

29.3

Median age

$54,808

Median household income

$24,005

Per capita income

$107,500

Median home value

$701

Median monthly rent

59.0%

Home ownership

21.7%

Poverty rate

7.2%

Unemployment

775

Housing units

50.5%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

224

15–19

215

221

20–24

212

145

25–34

139

118

35–44

114

145

45–54

139

55–59

60–64

136

65–74

131

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	613	20.6%
18 and over	2,360	79.4%
65 and over	499	16.8%
Median age	29.3 years

Race & ethnicity

White 85.6%

Two or more races 5.6%

Black or African American 3.2%

Hispanic or Latino 2%

Asian 1.4%

Other race 1.3%

American Indian / Alaska Native 0.7%

Native Hawaiian / Pacific Islander 0.3%

Group	Count	%
White	2,595	85.6%
Two or more races	171	5.6%
Black or African American	96	3.2%
Hispanic or Latino	60	2%
Asian	42	1.4%
Other race	39	1.3%
American Indian / Alaska Native	20	0.7%
Native Hawaiian / Pacific Islander	10	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	57.6%	50.7%	40.1%
$50k – $100k	25.1%	33.9%	33.4%
$100k – $200k	15.2%	13.2%	21.5%
Over $200k	2.1%	2.1%	5.0%

Under $10k 6.5%

$10k–$15k 7.5%

$15k–$25k 12.1%

$25k–$35k 4.9%

$35k–$50k 17.1%

$50k–$75k 17.9%

$75k–$100k 11.6%

$100k–$150k 15.8%

$150k–$200k 3.9%

$200k+ 2.6%

Range	% of households
Under $10k	6.5%
$10k–$15k	7.5%
$15k–$25k	12.1%
$25k–$35k	4.9%
$35k–$50k	17.1%
$50k–$75k	17.9%
$75k–$100k	11.6%
$100k–$150k	15.8%
$150k–$200k	3.9%
$200k+	2.6%
Median income	$54,808

Housing

Home values

Under $50k 6.5%

$50k–$100k 37.6%

$100k–$150k 28.0%

$150k–$200k 9.0%

$200k–$300k 9.8%

$300k–$500k 8.0%

$500k–$1M 1.1%

Housing overview

Metric	Value
Median home value	$107,500
Median rent / month	$701
Owner occupied	59.0%
Renter occupied	41.0%
Vacant	13.4%
Single-family detached	73.2%
Large apartment buildings	7.7%
Mobile homes	3.3%
Median rooms	5.8
Avg household size (owned)	2.62

Year built

Era	%
2020 or later	0.0%
2010–2019	4.2%
2000–2009	7.8%
1990–1999	10.8%
1980–1989	14.7%
1970–1979	20.4%
1960–1969	8.0%
1950–1959	4.0%
1940–1949	2.4%
1939 or earlier	27.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.9%
1 bedroom	18.7%
2 bedrooms	16.9%
3 bedrooms	42.2%
4 bedrooms	13.2%
5+ bedrooms	8.1%

Vehicles per household

Vehicles	% of households
No vehicle	10.4%
1 vehicle	32.1%
2 vehicles	31.6%
3 or more	25.9%

Heating fuel

Fuel type	%
Utility gas	47.5%
Electricity	33.0%
Propane / LP gas	13.0%
Fuel oil	0.6%
Wood	5.3%

Households & families

Household type	Count	%
Married-couple family	560	53.8%
Cohabiting couple	49	4.7%
Male householder, no spouse	188	18.1%
Female householder, no spouse	243	23.4%
Households with children under 18	303	29.1%
Households with seniors (65+)	334	32.1%
Average household size	2.33

Marital status

Status	Male	Female
Never married	41.2%	34.5%
Married	51.4%	49.3%
Separated	0.0%	2.6%
Widowed	2.1%	6.3%
Divorced	5.3%	7.4%

Education

Less than 9th grade 4.5%

Some HS, no diploma 6.2%

HS graduate 20.8%

Some college, no degree 12.4%

Associate's degree 5.6%

Bachelor's degree 25.4%

Graduate / professional 25.1%

Metric	%
HS diploma or higher	89.3%
Bachelor's or higher	50.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	5	0.4%
Kindergarten	24	2.1%
Elementary school	252	22.5%
High school	138	12.3%
College / grad school	699	62.5%

Employment

Industry of employment

Education & healthcare 45.2%

Arts, food & hospitality 13.9%

Retail trade 9.8%

Manufacturing 5.8%

Professional & management 5.5%

Finance & real estate 4.4%

Transportation & utilities 3.2%

Construction 3.1%

Agriculture & mining 3.0%

Public administration 2.9%

Other services 1.9%

Information 0.7%

Wholesale trade 0.5%

Occupation

Category	%
Management, business & arts	46.7%
Service	18.8%
Sales & office	21.9%
Natural resources & construction	4.7%
Production & transportation	7.9%

Employment type

Type	%
Private sector	71.1%
Government	20.3%
Self-employed	8.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	63.6%
Carpool	10.8%
Public transit	0.0%
Walk	14.0%
Work from home	11.2%
Other means	0.4%
Avg commute (minutes)	16.0

Poverty

All people 21.7%

Under 18 years 31.2%

18 and over 18.6%

Married-couple families 13.8%

Female-led households 16.7%

Income support

Source	% of households
Social Security	37.3%
Retirement income	21.6%
Supplemental Security	2.3%
Cash public assistance	1.5%
Food stamps / SNAP	10.2%

Health indicators

Condition	%
Obesity	36.2%
High blood pressure	29.2%
High cholesterol	28.5%
Diabetes	8.9%
Heart disease	6.2%
Stroke	3.0%
Asthma	10.2%
Arthritis	21.7%
Kidney disease	2.8%
Pulmonary disease	6.7%
Cancer	5.8%

Behavior / access	%
Smoking	15.6%
Binge drinking	21.8%
No physical activity	24.3%
Less than 7 hrs sleep	30.5%
Depression	18.9%
Fair or poor health	13.2%
Poor mental health	15.6%
Poor physical health	9.5%
No health insurance	10.6%
Visited doctor (checkup)	73.8%
Visited dentist	62.7%
Cholesterol screening	81.5%
Teeth loss	16.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	135	5.7%

Disability	%
Any disability	15.7%
Under 18	7.3%
18–64 years	13.6%
65 and over	34.6%

Health insurance coverage

Type	%
Private insurance	71.6%
Public insurance	33.0%
No insurance	7.8%
Uninsured under 19	15.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,786	93.7%
Spanish	113	4.1%
Other Indo-European	18	0.6%
Asian & Pacific Islander	61	2.2%
Other languages	34	1.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,816	94.7%
Born in same state	2,804	94.3%
Born in different state	1,642	55.2%
Foreign born	12	0.4%
Naturalized citizen	157	5.3%
Not a US citizen	21	13.4%

Ancestry

Ancestry	Count	%
French	315	10.6%
Italian	239	8%
Polish	128	4.3%
Arab	112	3.8%

Ancestry	Count	%
English	69	2.3%
Dutch	43	1.4%
German	5	0.2%

Technology access

Metric	% of households
Computer access	35.0%
Internet access	92.0%

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

Frequently asked questions about ZIP code 50140

What city is ZIP code 50140 in?

ZIP code 50140 is primarily assigned to Lamoni, Iowa.

What county is ZIP code 50140 in?

ZIP code 50140 falls within Decatur County, Iowa.

What is the poverty rate in ZIP code 50140?

22% of residents in ZIP code 50140 live below the poverty line, above the national average.

How educated is the population of ZIP code 50140?

51% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Does ZIP code 50140 have a large retiree population?

37% of households in ZIP code 50140 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 50140?

The median home value in ZIP code 50140 is $107,500.

What timezone is ZIP code 50140 in?

ZIP code 50140 observes the CST timezone.