Postal Codes

61261 ZIP Code

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ZIP code 61261 covers Lyndon, Illinois, with a population of about 691 and a median household income of $53,750.

Population
69142 per square mile
Median age
45.87.1 points above the US average
Median household income
$53,75034% below the Illinois median
Poverty rate
5.9%6.5 points below the US average
Typical home value
$124,360
Median rent
$1,1467% below the Illinois median
Degree or higher
14.9%20.1 points below the US average
Homeownership
79%14 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
14

Where 61261 is

Lyndon, Illinois — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population691
Median age45.8
Family households49.8%
Born outside the US3%
Speaks a language other than English at home6.3%
White (non-Hispanic)79.9%
Black (non-Hispanic)1%
Asian (non-Hispanic)0.1%
Hispanic or Latino17.9%
Veterans9.4%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$53,750
Income per person$34,756
Poverty rate5.9%
Households on SNAP or cash assistance10.5%

Household income distribution

Under $10k5.2%
$10–15k0.7%
$15–20k1.6%
$20–25k9.5%
$25–30k0.3%
$30–35k12.1%
$35–40k10.8%
$40–45k4.3%
$45–50k2.0%
$50–60k7.9%
$60–75k11.1%
$75–100k13.8%
$100–125k2.3%
$125–150k3.9%
$150–200k8.2%
$200k or more6.2%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed430
Mean adjusted gross income$57,577
Returns declaring $200,000 or more0%
Returns, under $25k30.2%
Returns, $25k–$50k25.6%
Returns, $50k–$75k16.3%
Returns, $75k–$100k11.6%
Returns, $100k–$200k16.3%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$114,400
Median gross rent$1,146
Owner-occupied79%
Vacant homes17.8%
Median year built1963

What the homes are

Detached house74.4%
Attached house3.8%
2 to 4 units3.2%
Mobile home18.6%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$124,360as of 2026-07
Typical home value, 1 yearup 0.4%
Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate6.5%
Bachelor's degree or higher14.9%
High school diploma or higher87.8%
Works from home3.5%
Drives to work alone79.7%
Takes public transport0%
Commutes 45 minutes or more18.6%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity34.8% 1.4 pts above the national average of 33.4%
Diagnosed diabetes12.2% same as the national average of 12%
Currently smokes13.9% 0.7 pts above the national average of 13.2%
High blood pressure36.9% 2.8 pts above the national average of 34.1%
Fair or poor general health18.5% 1.8 pts below the national average of 20.3%
No health insurance (18–64)7.1% 4.2 pts below the national average of 11.3%
Depression21.9% same as the national average of 21.9%
No leisure-time physical activity22.8% 2.6 pts below the national average of 25.4%
Arthritis30.6% 5.5 pts above the national average of 25.1%
Binge drinking18% 2 pts above the national average of 16%
Taking blood pressure medication79.2% 4.5 pts above the national average of 74.7%
Cancer (non-skin)10.4% 2.7 pts above the national average of 7.7%
Current asthma10.4% same as the national average of 10.4%
Coronary heart disease7.3% 1.1 pts above the national average of 6.2%
Routine check-up in past year78.9% 2.2 pts above the national average of 76.7%
Cholesterol screening87.9% 2 pts above the national average of 85.9%
Cognitive disability12.9% 1.9 pts below the national average of 14.8%
Colorectal screening66.5% 2.2 pts above the national average of 64.3%
COPD8% 1.4 pts above the national average of 6.6%
Visited a dentist63.2% 1.9 pts above the national average of 61.3%
Any disability30.1% 0.6 pts below the national average of 30.7%
Lacks emotional support23.5% 1.3 pts below the national average of 24.8%
Food insecurity10.9% 6.2 pts below the national average of 17.1%
Received food stamps10.1% 4.2 pts below the national average of 14.3%
Hearing disability7.9% 1.2 pts above the national average of 6.7%
High cholesterol39.6% 3.4 pts above the national average of 36.2%
Housing insecurity9.1% 4.7 pts below the national average of 13.8%
Independent living disability7.7% 0.7 pts below the national average of 8.4%
Lacks transport6.2% 3 pts below the national average of 9.2%
Loneliness31.3% 3.1 pts below the national average of 34.4%
Mammography use70.9% 5 pts below the national average of 75.9%
Poor mental health (14+ days)16.3% 0.5 pts below the national average of 16.8%
Mobility disability14.2% same as the national average of 14%
Poor physical health (14+ days)13.8% same as the national average of 13.5%
Self-care disability3.5% 0.5 pts below the national average of 4%
Utility shut-off threat5.7% 3.1 pts below the national average of 8.8%
Sleeps under 7 hours34.7% 1.7 pts below the national average of 36.4%
Stroke3.7% same as the national average of 3.4%
All natural teeth lost10.8% 2.2 pts below the national average of 13%
Vision disability4.3% 1.3 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments14
People employed101
Annual payroll$4,831,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 59.8% of US census tracts
FEMA ratingRelatively Moderate
Expected annual loss66.1 out of 100
Community resilience73.9 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Drought97.5Relatively Moderate at its worst in this ZIP code
Strong wind91.8Relatively High at its worst in this ZIP code
Hail89.1Relatively High at its worst in this ZIP code
Landslide87.8Relatively Low at its worst in this ZIP code
Cold wave81.6Relatively High at its worst in this ZIP code
Winter weather76.8Relatively Moderate at its worst in this ZIP code
Ice storm76.7Relatively Moderate at its worst in this ZIP code
Tornado76.7Relatively High at its worst in this ZIP code
River flooding62.2Relatively Moderate at its worst in this ZIP code
Lightning58.1Relatively Moderate at its worst in this ZIP code
Wildfire51.1Very Low at its worst in this ZIP code
Earthquake49.7Relatively Low at its worst in this ZIP code
Heat wave33.9Relatively Low at its worst in this ZIP code
Hurricane30.9Very Low at its worst in this ZIP code
Compared with Illinois and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPIllinoisUnited States
Median household income$53,750$81,702$78,538
Income per person$34,756$45,104$43,289
Poverty rate5.9%11.7%12.4%
Median home value$114,400$250,500$303,400
Median gross rent$1,146$1,227$1,348
Homeownership79%66.8%65%
Bachelor's degree or higher14.9%37.2%35%
Unemployment rate6.5%5.8%5.2%
Works from home3.5%14%13.5%
Born outside the US3%14.4%13.9%
Median age45.838.938.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationMORRISON, IL US9.3 km away
Rain in a year38 in
Snow in a year32 in

Average high and low by month

January28.9°F / 12°F1.51 in rain, 10.4 in snow
February33.6°F / 15.7°F1.65 in rain, 7.6 in snow
March46.2°F / 26.7°F2.53 in rain, 3.6 in snow
April59.5°F / 36.9°F3.84 in rain, 0.8 in snow
May70.8°F / 48.8°F4.73 in rain
June79.9°F / 58.6°F4.93 in rain
July83.1°F / 62°F4.16 in rain
August81.1°F / 59.7°F4.32 in rain
September75°F / 51.2°F3.35 in rain
October62.2°F / 39.4°F2.77 in rain, 0.1 in snow
November47.2°F / 28.4°F2.47 in rain, 2.7 in snow
December34.5°F / 18.3°F2.02 in rain, 6.3 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Prophetstown-Lyndon-Tampico Community Unit School District 395% of this ZIP code's land area
Erie Community Unit School District 14.6% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability22more vulnerable than 22% of US census tracts
Socioeconomic status38more vulnerable than 38% of US census tracts
Household characteristics46more vulnerable than 46% of US census tracts
Racial and ethnic minority status13more vulnerable than 13% of US census tracts
Housing type and transport13more vulnerable than 13% of US census tracts
Walkability4.2 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

61277 Prophetstown, IL10.2 km away
61251 Fenton, IL10.7 km away
61270 Morrison, IL11.6 km away
61283 Tampico, IL12.6 km away
61037 Galt, IL14.9 km away
61250 Erie, IL15.6 km away
61071 Rock Falls, IL19.3 km away
61081 Sterling, IL20 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Whiteside County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area16.56 sq mi
Water area0.29 sq mi
Population density42 people per sq mi
Latitude, longitude41.7199, -89.9169

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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