Postal Codes

61770 ZIP Code

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ZIP code 61770 covers Saybrook, Illinois, with a population of about 1,081 and a median household income of $62,212.

Population
1,08118 per square mile
Median age
39.91.2 points above the US average
Median household income
$62,21224% below the Illinois median
Poverty rate
12.8%about the US average
Typical home value
$171,389up 37.2% in five years
Median rent
$88828% below the Illinois median
Degree or higher
13.3%21.7 points below the US average
Homeownership
79.5%14.5 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
18

Where 61770 is

Saybrook, 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

Population1,081
Median age39.9
Family households71.7%
Born outside the US4.3%
Speaks a language other than English at home6.1%
White (non-Hispanic)80.6%
Black (non-Hispanic)5.2%
Asian (non-Hispanic)0%
Hispanic or Latino10.5%
Veterans9.3%
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$62,212
Income per person$28,409
Poverty rate12.8%
Households on SNAP or cash assistance18.6%

Household income distribution

Under $10k10.5%
$10–15k0.5%
$15–20k3.7%
$20–25k2.6%
$25–30k3.4%
$30–35k9.4%
$35–40k3.1%
$40–45k1.0%
$45–50k2.6%
$50–60k10.0%
$60–75k12.3%
$75–100k14.7%
$100–125k6.0%
$125–150k3.4%
$150–200k11.0%
$200k or more5.5%

Income as declared to the IRS

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

Tax returns filed500
Mean adjusted gross income$70,842
Returns declaring $200,000 or more0%
Returns, under $25k22.0%
Returns, $25k–$50k26.0%
Returns, $50k–$75k16.0%
Returns, $75k–$100k14.0%
Returns, $100k–$200k22.0%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$101,000
Median gross rent$888
Rent as a share of household income24.5%
Owner-occupied79.5%
Vacant homes10.1%
Median year built1960

What the homes are

Detached house95%
2 to 4 units1.4%
Mobile home3.5%
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$171,389as of 2026-07
Typical home value, 1 yearup 11.6%
Typical home value, 5 yearsup 37.2%
Typical home value, 10 yearsup 61.7%
Typical home value since 2000
200020132026$171,389$86,485

$115,578 in 2000 to $171,389 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.3%
Bachelor's degree or higher13.3%
High school diploma or higher82.1%
Works from home10.5%
Drives to work alone63.8%
Takes public transport0%
Commutes 45 minutes or more32.9%
Health

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

Obesity39.7% 6.3 pts above the national average of 33.4%
Diagnosed diabetes13.5% 1.5 pts above the national average of 12%
Currently smokes18.1% 4.9 pts above the national average of 13.2%
High blood pressure39.8% 5.7 pts above the national average of 34.1%
Fair or poor general health22.4% 2.1 pts above the national average of 20.3%
No health insurance (18–64)8.7% 2.6 pts below the national average of 11.3%
Depression23.4% 1.5 pts above the national average of 21.9%
No leisure-time physical activity26.7% 1.3 pts above the national average of 25.4%
Arthritis31% 5.9 pts above the national average of 25.1%
Binge drinking16.8% 0.8 pts above the national average of 16%
Taking blood pressure medication78% 3.3 pts above the national average of 74.7%
Cancer (non-skin)9.5% 1.8 pts above the national average of 7.7%
Current asthma10.8% same as the national average of 10.4%
Coronary heart disease8% 1.8 pts above the national average of 6.2%
Routine check-up in past year78.4% 1.7 pts above the national average of 76.7%
Cholesterol screening86.6% 0.7 pts above the national average of 85.9%
Cognitive disability15% same as the national average of 14.8%
Colorectal screening60.7% 3.6 pts below the national average of 64.3%
COPD9.7% 3.1 pts above the national average of 6.6%
Visited a dentist55.5% 5.8 pts below the national average of 61.3%
Any disability33.5% 2.8 pts above the national average of 30.7%
Lacks emotional support24.6% same as the national average of 24.8%
Food insecurity16% 1.1 pts below the national average of 17.1%
Received food stamps16.5% 2.2 pts above the national average of 14.3%
Hearing disability8.6% 1.9 pts above the national average of 6.7%
High cholesterol40.4% 4.2 pts above the national average of 36.2%
Housing insecurity12.1% 1.7 pts below the national average of 13.8%
Independent living disability9.7% 1.3 pts above the national average of 8.4%
Lacks transport8% 1.2 pts below the national average of 9.2%
Loneliness32.4% 2 pts below the national average of 34.4%
Mammography use67.7% 8.2 pts below the national average of 75.9%
Poor mental health (14+ days)17.6% 0.8 pts above the national average of 16.8%
Mobility disability16.8% 2.8 pts above the national average of 14%
Poor physical health (14+ days)15.6% 2.1 pts above the national average of 13.5%
Self-care disability4.6% 0.6 pts above the national average of 4%
Utility shut-off threat8.1% 0.7 pts below the national average of 8.8%
Sleeps under 7 hours35.4% 1 pts below the national average of 36.4%
Stroke4.2% 0.8 pts above the national average of 3.4%
All natural teeth lost16.5% 3.5 pts above the national average of 13%
Vision disability5.7% same as the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments18
People employed50
Annual payroll$2,377,000
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 40.2% of US census tracts
FEMA ratingRelatively Low to Relatively Moderate across the 3 census tracts this ZIP code covers
Expected annual loss44.6 out of 100
Community resilience92.4 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.

Drought97.2Relatively Moderate at its worst in this ZIP code
Cold wave89.1Relatively High at its worst in this ZIP code
Landslide72.9Very Low at its worst in this ZIP code
Hail71.5Relatively Moderate at its worst in this ZIP code
Strong wind62.6Relatively Moderate at its worst in this ZIP code
Winter weather61.5Relatively Moderate at its worst in this ZIP code
Tornado58.9Relatively Moderate at its worst in this ZIP code
Earthquake51.7Relatively Low at its worst in this ZIP code
Ice storm41.4Relatively Low at its worst in this ZIP code
Heat wave40.4Relatively Low at its worst in this ZIP code
Wildfire38.8Very Low at its worst in this ZIP code
Hurricane35.6Very Low at its worst in this ZIP code
River flooding33.5Relatively Moderate at its worst in this ZIP code
Lightning25Relatively 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$62,212$81,702$78,538
Income per person$28,409$45,104$43,289
Poverty rate12.8%11.7%12.4%
Median home value$101,000$250,500$303,400
Median gross rent$888$1,227$1,348
Homeownership79.5%66.8%65%
Bachelor's degree or higher13.3%37.2%35%
Unemployment rate4.3%5.8%5.2%
Works from home10.5%14%13.5%
Born outside the US4.3%14.4%13.9%
Median age39.938.938.7
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 stationGIBSON CITY, IL US14.2 km away
Rain in a year38 in
Snow in a year18 in

Average high and low by month

January32°F / 16°F1.95 in rain, 6.7 in snow
February36.5°F / 19.7°F1.77 in rain, 4.1 in snow
March48.2°F / 29.3°F2.74 in rain, 1.4 in snow
April61.6°F / 39.1°F3.57 in rain, 0.3 in snow
May72.5°F / 51.2°F4.51 in rain
June81.7°F / 60.7°F4.57 in rain
July84°F / 63.6°F3.57 in rain
August82.7°F / 61.5°F3.64 in rain
September77.8°F / 53.2°F3.2 in rain
October64.1°F / 41.4°F3.4 in rain, 0.1 in snow
November49.3°F / 30.9°F2.63 in rain, 1.1 in snow
December36.7°F / 22.1°F2.18 in rain, 4.6 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 supermarket17% of this ZIP code's area
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 3 school districts, so the address decides which one, not the ZIP code.

Ridgeview Community Unit School District 1972.2% of this ZIP code's land area
Blue Ridge Community Unit School District 1820.9% of this ZIP code's land area
Gibson City-Melvin-Sibley Community Unit School District 56.9% 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 vulnerability24more vulnerable than 24% of US census tracts
Socioeconomic status33more vulnerable than 33% of US census tracts
Household characteristics40more vulnerable than 40% of US census tracts
Racial and ethnic minority status14more vulnerable than 14% of US census tracts
Housing type and transport28more vulnerable than 28% of US census tracts
Walkability5.1 out of 20Least walkable
Nearby ZIP codes

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

61722 Arrowsmith, IL9.2 km away
61724 Bellflower, IL10.2 km away
61845 Foosland, IL12.3 km away
61720 Anchor, IL12.5 km away
60936 Gibson City, IL14.4 km away
61728 Colfax, IL17.4 km away
61737 Ellsworth, IL18 km away
61731 Cropsey, IL19.2 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.

McLean County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area60.46 sq mi
Water area0.05 sq mi
Population density18 people per sq mi
Latitude, longitude40.4320, -88.5247

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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