What city is ZIP code 61855?

ZIP code 61855 is in Cerro Gordo, IL (Piatt County).

What county is ZIP code 61855 in?

ZIP code 61855 is mostly in Piatt County, Illinois.

How many people live in ZIP code 61855?

About 24 people live in the 61855 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 61855

Cerro Gordo, IL, Piatt County

Population

Land area

11.7sq mi

People per sq mi

City

Cerro Gordo

ZIP 61855 and nearby ZIP codes

Full map

ZIP 61855 at a glance

ZIP 61855 (Cerro Gordo) is 99% less dense than Illinois as a whole.

Economy and federal money

Businesses, pandemic loans and political donations

Details

PPP loans

$63.7K

5 loans

PPP loans in this ZIP

Environment and hazard risk

ZIP 61855, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: drought

Storm events since 1996

312

Countywide, mostly thunderstorm wind

Flood insurance policies

0.4% of homes, county

July high / Jan low

86° / 20°F

36.4 inches of rain a year

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 61855, CDC PLACES estimates

All 40 measures

Obesity

37.8%

U.S. 33.3% +4.5 pts

Diabetes

12.2%

U.S. 12.1% about the same

Smoking

14.5%

U.S. 12.8% +1.7 pts

Uninsured (18-64)

5.7%

U.S. 11.1% -5.4 pts

Frequently asked questions

What city is ZIP code 61855?: ZIP code 61855 is in Cerro Gordo, IL (Piatt County).
What county is ZIP code 61855 in?: ZIP code 61855 is mostly in Piatt County, Illinois.
How many people live in ZIP code 61855?: About 24 people live in the 61855 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.