Zip code 61231: Aledo, Illinois

Q: What city is zip code 61231?

61231 is assigned to Aledo, Illinois. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 61231 in?

61231 is in Mercer County, Illinois.

Q: What is the population of 61231?

About 4,962 people live in 61231, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 61231?

The median household income in 61231 is $70,991.

Q: What zip codes are near 61231?

The closest zip codes to 61231 are 61263, 61486, 61279, 61260, 61476.

Residential delivery areaMercer CountyCentral Time

Population

4,962

Median household income

$71K

U.S. $81K

Median home value

$148K

U.S. $333K

Median rent

$815/mo

U.S. $1,413

Median age

42.2

U.S. 38.9

Land area

153 sq mi

32 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 61231

61231 is a rural zip code in Aledo, Illinois (Mercer County), covering 153 sq mi of land. About 4,962 people live here, or 32 per square mile. The median resident is 42.2 years old, compared with 38.9 nationally.

The median household earns $70,991 a year, close to the national median of $80,734. 11.5% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $147,600, or 2.1 years of median household income (U.S.: 4.1 years), which makes homes relatively affordable for local earners. 72% of occupied homes are lived in by their owners, and renters pay a median of $815 a month.

25% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 21.3 minutes each way, and 10% of workers work from home. The most common jobs among working residents are in construction and repair; office and administrative support; and transportation and moving goods.

How 61231 compares

Sorted from highest to lowest national percentile

Residents 65 and older22.1%
84th
U.S. 17.2% · IL 17%447th of 1,342 in IL
Veterans8%
77th
U.S. 6.2% · IL 4.8%416th of 1,342 in IL
Median age42.2
73rd
U.S. 38.9 · IL 39657th of 1,342 in IL
Housing vacancy8.2%
62nd
U.S. 10.1% · IL 7.7%677th of 1,338 in IL
Homeownership rate72.2%
59th
U.S. 65.2% · IL 67.1%1,008th of 1,338 in IL
Government workers14.2%
54th
U.S. 14.5% · IL 13.3%624th of 1,340 in IL
Poverty rate11.5%
53rd
U.S. 12.5% · IL 11.8%519th of 1,339 in IL
Median earnings per worker$47,217
47th
U.S. $49,666 · IL $51,895671st of 1,336 in IL
Broadband access91.2%
42nd
U.S. 91% · IL 90.8%524th of 1,338 in IL
Self-employed workers8.7%
42nd
U.S. 10% · IL 8.8%683rd of 1,340 in IL
Residents under 1820.8%
38th
U.S. 22% · IL 21.8%827th of 1,342 in IL
Median household income$70,991
37th
U.S. $80,734 · IL $83,390750th of 1,316 in IL
Per capita income$35,849
37th
U.S. $44,673 · IL $46,406777th of 1,341 in IL
Bachelor's degree or higher25.3%
35th
U.S. 35.7% · IL 37.8%510th of 1,340 in IL
Work from home9.9%
34th
U.S. 15.1% · IL 15.9%586th of 1,339 in IL
Income inequality (Gini)0.403
22nd
U.S. 0.483 · IL 0.481702nd of 1,336 in IL
Average commute21.3 min
19th
StrengthU.S. 26.4 min · IL 27.8 min1,087th of 1,317 in IL
Uninsured rate3.5%
17th
StrengthU.S. 8.4% · IL 6.9%837th of 1,341 in IL
Unemployment rate2.8%
14th
StrengthU.S. 5.2% · IL 5.8%941st of 1,340 in IL
Median home value$147,600
9th
U.S. $332,700 · IL $263,300709th of 1,311 in IL
Rent-burdened renters35.3%
9th
StrengthU.S. 51.1% · IL 47.9%809th of 1,291 in IL
Population4,962
8th
U.S. 334,922,499 · IL 12,694,798477th of 1,342 in IL
Median gross rent$815
8th
U.S. $1,413 · IL $1,274816th of 1,170 in IL
Diversity index15.1
8th
U.S. 61.4 · IL 60.5765th of 1,342 in IL
Healthcare workers5.9%
7th
U.S. 9.7% · IL 9.5%1,126th of 1,340 in IL
Population density32/sq mi
5th
U.S. 95/sq mi · IL 229/sq mi834th of 1,342 in IL
Foreign-born residents0.8%
5th
U.S. 14.1% · IL 14.7%838th of 1,342 in IL
Tech workers0.3%
4th
U.S. 3.8% · IL 3.8%962nd of 1,340 in IL

Measure	61231	Mercer	IL	U.S.	National percentile	Rank in IL
Residents 65 and older	22.1%	21.9%	17%	17.2%	84th	447th of 1,342
Veterans	8%	8.4%	4.8%	6.2%	77th	416th of 1,342
Median age	42.2	44.7	39	38.9	73rd	657th of 1,342
Housing vacancy	8.2%	9.9%	7.7%	10.1%	62nd	677th of 1,338
Homeownership rate	72.2%	83.8%	67.1%	65.2%	59th	1,008th of 1,338
Government workers	14.2%	14.1%	13.3%	14.5%	54th	624th of 1,340
Poverty rate	11.5%	8.9%	11.8%	12.5%	53rd	519th of 1,339
Median earnings per worker	$47,217	$48,166	$51,895	$49,666	47th	671st of 1,336
Broadband access	91.2%	90.5%	90.8%	91%	42nd	524th of 1,338
Self-employed workers	8.7%	9.8%	8.8%	10%	42nd	683rd of 1,340
Residents under 18	20.8%	20.8%	21.8%	22%	38th	827th of 1,342
Median household income	$70,991	$74,182	$83,390	$80,734	37th	750th of 1,316
Per capita income	$35,849	$39,391	$46,406	$44,673	37th	777th of 1,341
Bachelor's degree or higher	25.3%	20.9%	37.8%	35.7%	35th	510th of 1,340
Work from home	9.9%	10.1%	15.9%	15.1%	34th	586th of 1,339
Income inequality (Gini)	0.403	0.414	0.481	0.483	22nd	702nd of 1,336
Average commuteStrength	21.3 min	28.1 min	27.8 min	26.4 min	19th	1,087th of 1,317
Uninsured rateStrength	3.5%	4.6%	6.9%	8.4%	17th	837th of 1,341
Unemployment rateStrength	2.8%	3.2%	5.8%	5.2%	14th	941st of 1,340
Median home value	$147,600	$146,700	$263,300	$332,700	9th	709th of 1,311
Rent-burdened rentersStrength	35.3%	37.7%	47.9%	51.1%	9th	809th of 1,291
Population	4,962	15,495	12,694,798	334,922,499	8th	477th of 1,342
Median gross rent	$815	$786	$1,274	$1,413	8th	816th of 1,170
Diversity index	15.1	13.1	60.5	61.4	8th	765th of 1,342
Healthcare workers	5.9%	6.6%	9.5%	9.7%	7th	1,126th of 1,340
Population density	32/sq mi	28/sq mi	229/sq mi	95/sq mi	5th	834th of 1,342
Foreign-born residents	0.8%	1.1%	14.7%	14.1%	5th	838th of 1,342
Tech workers	0.3%	0.8%	3.8%	3.8%	4th	962nd of 1,340

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

14%

5–17

18–24

14%

25–34

12%

35–44

12%

45–54

13%

55–64

12%

65–74

10%

75+

Median age

42.2

Under 18

20.8%

65 and over

22.1%

Race and ethnicity

White92%
Black2%
Hispanic4%
Asian0.5%
Native American0.0%
Pacific Islander0%
Other0%
Multiracial1%

Diversity index

15.1

U.S. 61.4

Foreign-born

0.8%

U.S. 14.1%

Born in state

70.7%

Language spoken at home (households)

English only

96%

Spanish

Other Indo-European

0.5%

Asian / Pacific

0.7%

Other

Households

Households: 2,128
Average household size: 2.3
Family households: 65.6%
Married couples: 55.4%
Living alone: 29.5%
Veterans (of adults): 8%
Male / female: 49% / 51%

Income and poverty

Household income distribution

<$25k

17%

$25–50k

19%

$50–75k

18%

$75–100k

10%

$100–150k

18%

$150–200k

12%

$200k+

Median household income

61231

$70,991

Mercer Co.

$74,182

Illinois

$83,390

United States

$80,734

Per capita income

$35,849

U.S. $44,673

Poverty rate

11.5%

U.S. 12.5%

Households earning $150K+

16.6%

U.S. 23%

Income inequality (Gini)

0.403

U.S. 0.483

Housing

Median home value

61231

$147,600

Mercer Co.

$146,700

Illinois

$263,300

United States

$332,700

Median gross rent

61231

$815

Mercer Co.

$786

Illinois

$1,274

United States

$1,413

Types of housing

Single-family

83%

2–4 units

5–19 units

20+ units

Mobile home

0.8%

Boat, RV, van

Housing units: 2,317
Owner-occupied: 72.2%
Vacant: 8.2%
Median year built: 1959
Median rooms: 6.2
Renters paying 30%+ of income: 35.3%
Renters paying 50%+ of income: 10%
Home value to income: 2.1× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

83%

Carpooled

Transit

Walked

Bicycle

Worked from home

10%

Other

Commute time (one way)

<10 min

47%

10–19

10%

20–29

30–44

12%

45–59

20%

60+

Average commute

21.3 min

U.S. 26.4 min

Unemployment

2.8%

U.S. 5.2%

In labor force

64.4%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Construction and repair

16%

Office and admin

14%

Transportation and moving

10%

Management

Sales

Education

Cleaning and personal care

Healthcare

Food service

Business and finance

Production

Engineering and science

Farming, fishing and forestry

Arts, media and sports

Legal and social services

Police and fire

Computer and math

0.3%

Industries

Manufacturing

15%

Retail

14%

Health care and social assistance

10%

Education

Construction

Restaurants and hotels

Other services

Finance, insurance and real estate

Transportation, warehousing and utilities

Public administration

Agriculture and mining

Admin, support and management

Professional and technical services

Arts and recreation

Information

Wholesale

0.7%

Median earnings per worker

$47,217

U.S. $49,666

Self-employed

8.7%

U.S. 10%

Government workers

14.2%

U.S. 14.5%

Nonprofit workers

6.1%

U.S. 8.8%

Median earnings by type of work

Type of work	61231	U.S.
Management, business, science and arts	$53,333	$74,888
Service	$10,982	$26,804
Sales and office	$43,324	$40,476
Construction and maintenance	$54,051	$49,199
Production and transportation	$47,105	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

36%

Some college

21%

Associate's

13%

Bachelor's

17%

Graduate

High school graduate or higher: 95.3%
Bachelor's degree or higher: 25.3%
Graduate or professional degree: 8.2%
Households with broadband: 91.2%
Cable, fiber or DSL: 67.7%
No internet access: 7.3%
Without health insurance: 3.5%
Limited-English households: 1%

Geography

City (USPS): Aledo
State: Illinois
County: Mercer County
Center point: 41.2107° N, 90.7178° W
Land area: 153 sq mi
Water area: 0.1 sq mi
Time zone: Central Time (UTC-6, UTC-5 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Aledo2% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 61231

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
61263	Matherville, IL	7.4 mi	657	$86,500	$134,800
61486	Viola, IL	7.4 mi	1,330	$78,889	$134,800
61279	Reynolds, IL	8 mi	1,015	$87,656	$161,500
61260	Joy, IL	9 mi	737	$41,645	$96,700
61476	Seaton, IL	10 mi	551	$88,264	$122,500
61276	Preemption, IL	10 mi	88	$87,750	$89,000
61412	Alexis, IL	12 mi	1,392	$82,143	$117,600
61237	Buffalo Prairie, IL	12 mi	0	—	—
61281	Sherrard, IL	12 mi	2,520	$102,639	$224,000
61465	New Windsor, IL	12 mi	1,192	$56,875	$127,400
61284	Taylor Ridge, IL	13 mi	2,599	$100,505	$236,900
61442	Keithsburg, IL	13 mi	504	$48,750	$67,200

Zip codes like 61231 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 61231

What city is zip code 61231?

61231 is assigned to Aledo, Illinois. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 61231 in?

61231 is in Mercer County, Illinois.

What is the population of 61231?

About 4,962 people live in 61231, according to the Census Bureau's American Community Survey.

What time zone is 61231 in?

61231 is in Central Time.

What is the median household income in 61231?

The median household income in 61231 is $70,991.

What zip codes are near 61231?

The closest zip codes to 61231 are 61263, 61486, 61279, 61260, 61476.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 61231, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.