Postal Codes

61877 ZIP Code

Advertisement

English Español

ZIP code 61877 covers Sidney, Illinois, with a population of about 1,055 and a median household income of $92,857.

Population
1,05536 per square mile
Median age
45.77 points above the US average
Median household income
$92,8571.1× the Illinois median
Poverty rate
3.3%9.1 points below the US average
Typical home value
$237,682up 33.4% in five years
Median rent
$1,1407% below the Illinois median
Degree or higher
22.6%12.4 points below the US average
Homeownership
87.1%22.1 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
25

Where 61877 is

Sidney, 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

Population1,055
Median age45.7
Family households69.2%
Born outside the US2.9%
Speaks a language other than English at home3.1%
White (non-Hispanic)93.6%
Black (non-Hispanic)0.6%
Asian (non-Hispanic)0.2%
Hispanic or Latino4.7%
Veterans9%
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$92,857
Income per person$48,773
Poverty rate3.3%
Households on SNAP or cash assistance8.4%

Household income distribution

Under $10k1.6%
$10–15k0.0%
$15–20k1.6%
$20–25k1.1%
$25–30k2.9%
$30–35k0.9%
$35–40k4.1%
$40–45k1.1%
$45–50k6.8%
$50–60k5.0%
$60–75k8.6%
$75–100k20.1%
$100–125k12.9%
$125–150k8.4%
$150–200k13.8%
$200k or more11.1%

Income as declared to the IRS

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

Tax returns filed820
Mean adjusted gross income$79,304
Returns declaring $200,000 or more3.7%
Returns, under $25k19.5%
Returns, $25k–$50k23.2%
Returns, $50k–$75k17.1%
Returns, $75k–$100k13.4%
Returns, $100k–$200k23.2%
Returns, $200k or more3.7%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$200,200
Median gross rent$1,140
Rent as a share of household income26.8%
Owner-occupied87.1%
Vacant homes8.1%
Median year built1966

What the homes are

Detached house93.6%
Attached house2.1%
2 to 4 units4.4%
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$237,682as of 2026-07
Typical home value, 1 yearup 9.7%
Typical home value, 5 yearsup 33.4%
Typical home value, 10 yearsup 62.4%
Typical home value since 2000
200120132026$237,682$97,813

$97,813 in 2001 to $237,682 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate6.7%
Bachelor's degree or higher22.6%
High school diploma or higher96.5%
Works from home3.3%
Drives to work alone86.4%
Takes public transport0%
Commutes 45 minutes or more6.5%
Health

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

Obesity33.2% same as the national average of 33.4%
Diagnosed diabetes10.5% 1.5 pts below the national average of 12%
Currently smokes13.8% 0.6 pts above the national average of 13.2%
High blood pressure33.2% 0.9 pts below the national average of 34.1%
Fair or poor general health16.7% 3.6 pts below the national average of 20.3%
No health insurance (18–64)6.4% 4.9 pts below the national average of 11.3%
Depression23.9% 2 pts above the national average of 21.9%
No leisure-time physical activity20.2% 5.2 pts below the national average of 25.4%
Arthritis27.9% 2.8 pts above the national average of 25.1%
Binge drinking19.6% 3.6 pts above the national average of 16%
Taking blood pressure medication76.7% 2 pts above the national average of 74.7%
Cancer (non-skin)9.2% 1.5 pts above the national average of 7.7%
Current asthma10.4% same as the national average of 10.4%
Coronary heart disease6.3% same as the national average of 6.2%
Routine check-up in past year76.6% same as the national average of 76.7%
Cholesterol screening87.7% 1.8 pts above the national average of 85.9%
Cognitive disability12.7% 2.1 pts below the national average of 14.8%
Colorectal screening66.8% 2.5 pts above the national average of 64.3%
COPD7% same as the national average of 6.6%
Visited a dentist63.6% 2.3 pts above the national average of 61.3%
Any disability27.5% 3.2 pts below the national average of 30.7%
Lacks emotional support23.8% 1 pts below the national average of 24.8%
Food insecurity10.8% 6.3 pts below the national average of 17.1%
Received food stamps9.9% 4.4 pts below the national average of 14.3%
Hearing disability7% same as the national average of 6.7%
High cholesterol37.2% 1 pts above the national average of 36.2%
Housing insecurity9.5% 4.3 pts below the national average of 13.8%
Independent living disability7.5% 0.9 pts below the national average of 8.4%
Lacks transport6.2% 3 pts below the national average of 9.2%
Loneliness32.2% 2.2 pts below the national average of 34.4%
Mammography use71.2% 4.7 pts below the national average of 75.9%
Poor mental health (14+ days)16.8% same as the national average of 16.8%
Mobility disability12.4% 1.6 pts below the national average of 14%
Poor physical health (14+ days)12.8% 0.7 pts below the national average of 13.5%
Self-care disability3.2% 0.8 pts below the national average of 4%
Utility shut-off threat6.1% 2.7 pts below the national average of 8.8%
Sleeps under 7 hours33.5% 2.9 pts below the national average of 36.4%
Stroke3.2% same as the national average of 3.4%
All natural teeth lost10% 3 pts below the national average of 13%
Vision disability4% 1.6 pts below the national average of 5.6%
Advertisement
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments25
People employed119
Annual payroll$4,822,000
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 82.1% of US census tracts
FEMA ratingRelatively Moderate
Expected annual loss85.9 out of 100
Community resilience79.1 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.

Drought98.7Relatively High at its worst in this ZIP code
Cold wave93.3Relatively High at its worst in this ZIP code
Winter weather89.1Relatively High at its worst in this ZIP code
River flooding85.8Relatively High at its worst in this ZIP code
Landslide85.1Relatively Low at its worst in this ZIP code
Hail81.3Relatively Moderate at its worst in this ZIP code
Tornado78.7Relatively High at its worst in this ZIP code
Earthquake74.5Relatively Low at its worst in this ZIP code
Strong wind73.3Relatively Moderate at its worst in this ZIP code
Heat wave64.2Relatively Moderate at its worst in this ZIP code
Lightning57.6Relatively Moderate at its worst in this ZIP code
Wildfire52.8Very Low at its worst in this ZIP code
Hurricane47.6Very Low at its worst in this ZIP code
Ice storm45.6Relatively 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$92,857$81,702$78,538
Income per person$48,773$45,104$43,289
Poverty rate3.3%11.7%12.4%
Median home value$200,200$250,500$303,400
Median gross rent$1,140$1,227$1,348
Homeownership87.1%66.8%65%
Bachelor's degree or higher22.6%37.2%35%
Unemployment rate6.7%5.8%5.2%
Works from home3.3%14%13.5%
Born outside the US2.9%14.4%13.9%
Median age45.738.938.7
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 stationOGDEN, IL US13.6 km away
Rain in a year41 in
Snow in a year25 in

Average high and low by month

January34°F / 18.2°F2.38 in rain, 5.9 in snow
February38.9°F / 21.6°F2.18 in rain, 9.3 in snow
March50.6°F / 30.2°F2.82 in rain, 3 in snow
April63.7°F / 40.8°F3.88 in rain, 0.3 in snow
May73.3°F / 52.4°F4.96 in rain
June81.6°F / 62°F4.96 in rain
July83.6°F / 65.1°F4.39 in rain
August82.6°F / 62.9°F3.5 in rain
September77.9°F / 55.7°F3.35 in rain
October65.7°F / 44.3°F3.32 in rain
November51.1°F / 32.4°F3.15 in rain, 1 in snow
December39.3°F / 23.9°F2.35 in rain, 5.5 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.

Tolono Community Unit School District 771.7% of this ZIP code's land area
Heritage Community Unit School District 828.3% 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 vulnerability12more vulnerable than 12% of US census tracts
Socioeconomic status16more vulnerable than 16% of US census tracts
Household characteristics52more vulnerable than 52% of US census tracts
Racial and ethnic minority status5more vulnerable than 5% of US census tracts
Housing type and transport10more vulnerable than 10% of US census tracts
Walkability6.1 out of 20Below average
Nearby ZIP codes

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

61864 Philo, IL8 km away
61849 Homer, IL9.1 km away
61802 Urbana, IL10.3 km away
61873 Saint Joseph, IL11 km away
61852 Longview, IL13.6 km away
61816 Broadlands, IL13.7 km away
61801 Urbana, IL14.9 km away
61859 Ogden, IL15.7 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.

Champaign County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area29.03 sq mi
Water area0.1 sq mi
Population density36 people per sq mi
Latitude, longitude40.0232, -88.0690

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.

Advertisement