ZipCodesToGo
Illinois ZIP Codes
Mercer County
Keithsburg, IL
61442
61442 ZIP Code — Keithsburg, IL
Mercer County, Illinois
ZIP code 61442 is located in
Keithsburg ,
Illinois ,
within Mercer County .
It covers approximately 28.59 square miles and serves a population of
678 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 309 .
About ZIP code 61442
The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $72,900. Owner-occupancy is high at 88%, well above the national average.
Median household income is $62,788. 40% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is natural resources, construction, and trades, with manufacturing as the leading industry. The average commute of 33 minutes is near the national average.
College attainment at 7% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (21%) compared to national benchmarks.
Notable community characteristics include a notable veteran presence at 15% of civilians, above the national average of 7%.
Overall, ZIP code 61442 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, and a significant Social Security-dependent population.
61442 ZIP code map
View map of 61442
Cities in ZIP code 61442
Below are the cities the US Postal Service accepts for ZIP code 61442. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
678
Population density
24 / sq mi
State FIPS
17
County FIPS
131
Geography
Land area
28.59 sq mi
Water area
2.46 sq mi
Latitude
41.1104
Longitude
-90.9317
Timezone
Central (CT)
Area code
309
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
59.2%
42.5%
37.2%
$50k – $100k
29.8%
35.8%
29.6%
$100k – $200k
9.7%
19.6%
24.4%
Over $200k
1.3%
2.1%
8.8%
Demographics & statistics
$62,788
Median household income
Age distribution
Age summary
Group Count % Under 18 100 14.7% 18 and over 578 85.3% 65 and over 189 27.9% Median age 50.5 years
Race & ethnicity
Group Count % White 670 98.8% Two or more races 8 1.2%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
59.2%
42.5%
37.2%
$50k – $100k
29.8%
35.8%
29.6%
$100k – $200k
9.7%
19.6%
24.4%
Over $200k
1.3%
2.1%
8.8%
Range % of households Under $10k 5.5% $10k–$15k 5.5% $15k–$25k 8.7% $25k–$35k 12.0% $35k–$50k 10.7% $50k–$75k 17.5% $75k–$100k 9.4% $100k–$150k 16.8% $150k–$200k 9.4% $200k+ 4.5% Median income $62,788
Housing
Housing overview
Metric Value Median home value $72,900 Median rent / month $564 Owner occupied 88.0% Renter occupied 12.0% Vacant 31.3% Single-family detached 64.4% Large apartment buildings 0.0% Mobile homes 25.1% Median rooms 5.8 Avg household size (owned) 2.21
Year built
Era % 2020 or later 0.0% 2010–2019 0.0% 2000–2009 0.4% 1990–1999 31.8% 1980–1989 5.8% 1970–1979 19.8% 1960–1969 2.7% 1950–1959 8.2% 1940–1949 2.4% 1939 or earlier 28.9%
Bedrooms
Size % of units No bedroom (studio) 9.6% 1 bedroom 2.0% 2 bedrooms 30.0% 3 bedrooms 49.6% 4 bedrooms 8.0% 5+ bedrooms 0.9%
Vehicles per household
Vehicles % of households No vehicle 1.0% 1 vehicle 28.2% 2 vehicles 43.0% 3 or more 27.8%
Heating fuel
Fuel type % Utility gas 73.1% Electricity 8.4% Propane / LP gas 15.2% Fuel oil 2.3% Wood 1.0%
Households & families
Household type Count % Married-couple family 167 54.0% Cohabiting couple 29 9.4% Male householder, no spouse 56 18.1% Female householder, no spouse 57 18.4% Households with children under 18 47 15.2% Households with seniors (65+) 136 44.0% Average household size 2.19
Marital status
Status Male Female Never married 26.8% 19.1% Married 54.2% 57.9% Separated 3.5% 1.1% Widowed 11.0% 14.7% Divorced 4.5% 7.2%
Education
Some HS, no diploma
12.0%
Some college, no degree
21.8%
Graduate / professional
1.1%
Metric % HS diploma or higher 86.3% Bachelor's or higher 7.4%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 8 9.1% Kindergarten 6 6.8% Elementary school 51 58.0% High school 13 14.8% College / grad school 10 11.4%
Employment
Industry of employment
Agriculture & mining
17.2%
Education & healthcare
15.1%
Transportation & utilities
5.5%
Arts, food & hospitality
4.3%
Professional & management
3.1%
Public administration
1.8%
Finance & real estate
0.6%
Occupation
Category % Management, business & arts 18.5% Service 14.8% Sales & office 15.4% Natural resources & construction 32.0% Production & transportation 19.4%
Employment type
Type % Private sector 92.6% Government 6.2% Self-employed 1.2% Unpaid family workers 0.0%
Commute
Method % Drive alone 84.0% Carpool 16.0% Public transit 0.0% Walk 0.0% Work from home 0.0% Other means 0.0% Avg commute (minutes) 32.8
Poverty
Married-couple families
7.2%
Female-led households
0.0%
Income support
Source % of households Social Security 39.5% Retirement income 31.7% Supplemental Security 12.0% Cash public assistance 0.6% Food stamps / SNAP 12.9%
Health indicators
Condition % Obesity 37.6% High blood pressure 38.3% High cholesterol 36.6% Diabetes 12.2% Heart disease 8.6% Stroke 3.9% Asthma 10.0% Arthritis 31.8% Kidney disease 3.5% Pulmonary disease 9.5% Cancer 8.2%
Behavior / access % Smoking 21.1% Binge drinking 13.8% No physical activity 29.1% Less than 7 hrs sleep 32.5% Depression 18.0% Fair or poor health 17.3% Poor mental health 13.1% Poor physical health 11.9% No health insurance 11.4% Visited doctor (checkup) 77.7% Visited dentist 58.0% Cholesterol screening 90.3% Teeth loss 17.2%
Veterans & disability
Veterans Count % Civilian veterans 84 14.5%
Disability % Any disability 20.5% Under 18 7.0% 18–64 years 11.3% 65 and over 46.6%
Health insurance coverage
Type % Private insurance 60.8% Public insurance 48.1% No insurance 13.0% Uninsured under 19 19.0%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 648 95.6% 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) 676 99.7% Born in same state 676 99.7% Born in different state 533 78.6% Foreign born 0 0.0% Naturalized citizen 2 0.3% Not a US citizen 2 100.0%
Ancestry
Ancestry Count % Italian 53 7.8% Arab 50 7.4%
Ancestry Count % French 38 5.6% Polish 12 1.8%
Technology access
Metric % of households Computer access 45.6% Internet access 85.1%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 61442
What city is ZIP code 61442 in?
ZIP code 61442 is primarily assigned to Keithsburg, Illinois.
What county is ZIP code 61442 in?
ZIP code 61442 falls within Mercer County, Illinois.
Does ZIP code 61442 have an older population?
28% of residents in ZIP code 61442 are 65 or older, above the national average of ~17%.
How educated is the population of ZIP code 61442?
7% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
Is ZIP code 61442 mostly owner-occupied?
88% of occupied units in ZIP code 61442 are owner-occupied, well above the national average.
Does ZIP code 61442 have a large veteran population?
15% of civilians in ZIP code 61442 are veterans, above the national average of ~7%.
What timezone is ZIP code 61442 in?
ZIP code 61442 observes the CST timezone.
Need the complete ZIP code database?
Download all 42,000+ US ZIP codes — Excel, CSV, or Access. Includes lat/lng, county FIPS & timezone.
Download database →
