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zipcodes.pro — CITY/IL/ROCK-CITY

Rock City ZIP code, Illinois

The ZIP code for Rock City, IL is 61070, and its area codes are 815 and 779.

USPS city name
1 ZIP code
Population
441
Area codes
815, 779

NANPA lists no telephone rate centre for Rock City itself, so these are the area codes of the nearest one, Davis (3.5 miles). A town on an area-code boundary can differ from its neighbour.

Rock City in numbers

About 441 people live in Rock City, in 154 households. The median household income is $68,125 a year, 18% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $122,700 (53% below the Illinois median), and median gross rent is $842 a month. The median age is 26.8; 11.1% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 31 minutes.

Population441Rock City441
Households154Rock City154
Median age26.8Rock City26.8Illinois39.0US 38.9
Median household income$68,125Rock City$68,125Illinois$83,390US $80,734
Median home value$122,700Rock City$122,700Illinois$263,300US $332,700
Median gross rent$842Rock City$842Illinois$1,274US $1,413
Bachelor's degree or higher11.1%Rock City11.1%Illinois37.8%US 35.7%
Mean commute30.7 minRock City30.7 minIllinois27.8 minUS 26.4 min
Population density3,243 / sq miRock City3,243 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Rock City village. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Rock City

ZIP codes with the USPS city name Rock City
ZIP City Type Population Median income Median home
61070 Rock City , IL Standard 1,322 $84,167 $157,000

Map of Rock City ZIP codes

61070

The ZIP codes of Rock City, IL, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Rock City

The nearest larger towns are Davis (535 people, 2.9 mi), Dakota (645 people, 3.3 mi) and Lake Summerset (2,364 people, 5.0 mi).

Towns near Rock City
TownPopulationDistance
Freeport 23,505 12.0 mi
Brodhead, WI 3,197 14.9 mi
Monroe, WI 10,587 15.6 mi
Winnebago 2,981 15.8 mi
Lena 2,761 18.1 mi
Rockton 7,974 20.9 mi
Byron 3,743 22.7 mi
Machesney Park 22,630 23.0 mi
South Beloit 7,946 23.2 mi
Rockford 147,521 23.4 mi
Roscoe 10,706 23.6 mi
Beloit, WI 36,534 24.3 mi
Loves Park 23,502 24.7 mi
Mount Morris 2,726 25.3 mi

More nearby: every ZIP code in Stephenson County · Illinois ZIP codes

Cite this page

zipcodes.pro. “Rock City, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/rock-city

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