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Illinois ZIP Codes
Douglas County
Arthur, IL
61911
61911 ZIP Code — Arthur, IL
Douglas County, Illinois
ZIP code 61911 is located in
Arthur ,
Illinois ,
within Douglas County .
It covers approximately 63.59 square miles and serves a population of
4,647 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 217 .
About ZIP code 61911
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $154,700. Owner-occupancy sits near the national average at 75%.
Median household income is $72,500. 31% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is production, transportation, and material moving, with manufacturing as the leading industry. The average commute of 15 minutes is near the national average.
College attainment at 15% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (23%) compared to national benchmarks. 41% of residents lack health insurance, above the national average.
Overall, ZIP code 61911 reflects a community defined by a trades-oriented workforce and a significant Social Security-dependent population.
61911 ZIP code map
View map of 61911
Cities in ZIP code 61911
Below are the cities the US Postal Service accepts for ZIP code 61911. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
4,647
Population density
73 / sq mi
State FIPS
17
County FIPS
041
Geography
Land area
63.59 sq mi
Water area
0.02 sq mi
Latitude
39.6813
Longitude
-88.4647
Timezone
Central (CT)
Area code
217
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
37.0%
40.5%
37.2%
$50k – $100k
40.8%
34.0%
29.6%
$100k – $200k
17.6%
21.6%
24.4%
Over $200k
4.6%
3.9%
8.8%
Demographics & statistics
$72,500
Median household income
$154,700
Median home value
14.9%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 1,298 27.9% 18 and over 3,349 72.1% 65 and over 978 21.0% Median age 32.8 years
Race & ethnicity
Black or African American
0.1%
Group Count % White 4,453 93.6% Hispanic or Latino 109 2.3% Other race 109 2.3% Two or more races 78 1.6% Black or African American 7 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
37.0%
40.5%
37.2%
$50k – $100k
40.8%
34.0%
29.6%
$100k – $200k
17.6%
21.6%
24.4%
Over $200k
4.6%
3.9%
8.8%
Range % of households Under $10k 6.8% $10k–$15k 2.0% $15k–$25k 6.8% $25k–$35k 10.7% $35k–$50k 12.0% $50k–$75k 14.2% $75k–$100k 21.0% $100k–$150k 11.9% $150k–$200k 7.5% $200k+ 7.0% Median income $72,500
Housing
Housing overview
Metric Value Median home value $154,700 Median rent / month $701 Owner occupied 74.9% Renter occupied 25.1% Vacant 5.2% Single-family detached 88.3% Large apartment buildings 4.7% Mobile homes 0.8% Median rooms 6.5 Avg household size (owned) 3.00
Year built
Era % 2020 or later 0.7% 2010–2019 7.3% 2000–2009 7.2% 1990–1999 8.7% 1980–1989 8.3% 1970–1979 20.2% 1960–1969 8.6% 1950–1959 10.3% 1940–1949 9.9% 1939 or earlier 18.9%
Bedrooms
Size % of units No bedroom (studio) 2.7% 1 bedroom 5.2% 2 bedrooms 26.3% 3 bedrooms 33.6% 4 bedrooms 21.3% 5+ bedrooms 10.9%
Vehicles per household
Vehicles % of households No vehicle 35.2% 1 vehicle 20.8% 2 vehicles 28.7% 3 or more 15.3%
Heating fuel
Fuel type % Utility gas 43.5% Electricity 21.8% Propane / LP gas 19.9% Fuel oil 1.6% Wood 7.3% No fuel used 0.9%
Households & families
Household type Count % Married-couple family 1,068 64.7% Cohabiting couple 44 2.7% Male householder, no spouse 197 11.9% Female householder, no spouse 341 20.7% Households with children under 18 610 37.0% Households with seniors (65+) 619 37.5% Average household size 2.79
Marital status
Status Male Female Never married 31.5% 21.3% Married 60.6% 59.6% Separated 0.0% 0.6% Widowed 3.5% 12.4% Divorced 4.3% 6.1%
Education
Less than 9th grade
32.1%
Some college, no degree
19.6%
Graduate / professional
3.7%
Metric % HS diploma or higher 62.4% Bachelor's or higher 14.9%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 12 1.7% Kindergarten 18 2.5% Elementary school 428 59.1% High school 161 22.2% College / grad school 105 14.5%
Employment
Industry of employment
Education & healthcare
12.2%
Agriculture & mining
6.8%
Arts, food & hospitality
6.2%
Transportation & utilities
4.7%
Professional & management
4.7%
Public administration
3.3%
Finance & real estate
1.6%
Occupation
Category % Management, business & arts 16.8% Service 15.8% Sales & office 23.2% Natural resources & construction 12.0% Production & transportation 32.1%
Employment type
Type % Private sector 72.9% Government 10.7% Self-employed 12.0% Unpaid family workers 4.5%
Commute
Method % Drive alone 46.4% Carpool 12.1% Public transit 0.0% Walk 11.4% Work from home 11.4% Other means 18.7% Avg commute (minutes) 15.2
Poverty
Married-couple families
12.7%
Female-led households
30.8%
Income support
Source % of households Social Security 30.8% Retirement income 17.3% Supplemental Security 2.8% Cash public assistance 1.8% Food stamps / SNAP 6.5%
Health indicators
Condition % Obesity 34.7% High blood pressure 34.1% High cholesterol 34.1% Diabetes 10.5% Heart disease 7.5% Stroke 3.7% Asthma 10.7% Arthritis 28.4% Kidney disease 3.3% Pulmonary disease 9.4% Cancer 7.1%
Behavior / access % Smoking 22.6% Binge drinking 15.5% No physical activity 29.0% Less than 7 hrs sleep 32.5% Depression 20.0% Fair or poor health 17.9% Poor mental health 14.7% Poor physical health 11.8% No health insurance 14.4% Visited doctor (checkup) 74.9% Visited dentist 56.9% Cholesterol screening 86.0% Teeth loss 20.7%
Veterans & disability
Veterans Count % Civilian veterans 142 4.2%
Disability % Any disability 13.5% Under 18 1.8% 18–64 years 7.4% 65 and over 45.5%
Health insurance coverage
Type % Private insurance 39.9% Public insurance 28.9% No insurance 41.3% Uninsured under 19 58.3%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 4,219 90.8% Spanish 600 14.2% Other Indo-European 10 0.2% Asian & Pacific Islander 590 14.0% Other languages 0 0.0%
Place of birth & citizenship
Origin Count % Native born (US) 4,583 98.6% Born in same state 4,578 98.5% Born in different state 3,781 81.4% Foreign born 5 0.1% Naturalized citizen 64 1.4% Not a US citizen 35 54.7%
Ancestry
Ancestry Count % Arab 664 14.3% Italian 277 6% French 186 4%
Ancestry Count % Irish 45 1% Polish 38 0.8% English 27 0.6%
Technology access
Metric % of households Computer access 35.5% Internet access 59.6%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 61911
What city is ZIP code 61911 in?
ZIP code 61911 is primarily assigned to Arthur, Illinois.
What county is ZIP code 61911 in?
ZIP code 61911 falls within Douglas County, Illinois.
How educated is the population of ZIP code 61911?
15% 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 poverty rate in ZIP code 61911?
15% of residents in ZIP code 61911 live below the poverty line, above the national average.
What is the typical home value in ZIP code 61911?
The median home value in ZIP code 61911 is $154,700.
What is the population of ZIP code 61911?
ZIP code 61911 has an estimated population of 4,647 residents, with a density of 73 people per square mile.
What timezone is ZIP code 61911 in?
ZIP code 61911 observes the CST timezone.
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