Residential delivery area · Illinois
ZIP Code 61070: Rock City, IL
ZIP code 61070 uses the postal name Rock City, Illinois and lies entirely in Stephenson County (Census 2020 ZIP-county file). About 1,300 people live there (Census Bureau, ACS 2020-2024). Median household income is $84,167 (Census Bureau, ACS 2020-2024). By Census place, under 1% of its land lies in Rock City; more than 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2023
- ZBP2023
- IRS2022
- Town
- Rock City · its only residential ZIP
- County
- Stephenson County
- Census places
- Rock City
- Micro area
- Freeport, IL
- House district
- IL-16 119th Congress
- State
- Illinois
- Time zone
- Central
- Land area
- 32.4 sq mi · 41 people per sq mi
Where is ZIP code 61070?
61070 centers on 42.416°, -89.472° and covers 32.4 square miles of land. It borders 7 ZIP codes: 61019, 61018, 61067, 61060, 61063, 53550, 61032.
The map draws ZIP code areas only. For the streets inside 61070, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 61070 compare with the rest of Stephenson County?
| Measure | 61070 | In Stephenson County | In IL |
|---|---|---|---|
| People (ACS 2020-2024) | 1,322 | 10th of 19 | 808th of 1,396 |
| Median household income | $84k | 4th of 11 | 350th of 797 |
| Median home value | $157k | 7th of 10 | 524th of 842 |
Its median household income is higher than in 67% of U.S. residential ZIP codes, and it is denser than 38% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 61070?
The 2020 Census counted 1,109 people in 61070; the ACS, which samples households over 2020-2024, estimates 1,322. Between the 2010 and 2020 censuses its population fell 1.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,322±363 (90% margin)
- 2020 Census count
- 1,109−1.9% since 2010 (1,130)
- Households
- 488
- Median age
- 52.0
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 61070?
Of the 1,322 people the ACS estimates in 61070, 21.2% are under 18 and 21.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (83.6%), then Hispanic or Latino (11.0%).
- Under 1821.2%
- 18 to 6456.9%
- 65 and older21.9%
- White, not Hispanic83.6%
- Hispanic or Latino11.0%
- Other or two or more4.5%
- Asian, not Hispanic0.8%
- Black, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 61070 earn?
Median household income is $84,167 (ACS 2020-2024), the 4th highest of the 11 ranked ZIP codes in Stephenson County. It is not measurably different from 2015-2019 ($64,801 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $84,167±$18,601
- Income per person
- $45,343
- Below the poverty line
- 3.3%
- Unemployed (of the labor force)
- 5.4%
- Adults 25+ with a bachelor's degree
- 26.3%
- Adjusted gross income per tax return, 2022
- $76,893540 returns; wages 68% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 61070?
- Median home value (owners' estimate)
- $157,000
- Median gross rent
- $642
- Homes owned by their occupants
- 90.4%
- Housing units
- 588
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 61070?
19 business establishments had a location in this ZIP code in 2023, 2 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction5
- Transportation and warehousing3
- Other services (except public administration)3
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 61070?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 61019 | Davis | 3,461 | $105k | 3.5 mi |
| 61018 | Dakota | 1,034 | $77k | 4.3 mi |
| 61067 | Ridott | 450 | $67k | 7.6 mi |
| 61060 | Orangeville | 1,554 | $77k | 8.6 mi |
| 61063 | Pecatonica | 4,011 | $84k | 9.4 mi |
| 53550 | Juda, WI | 1,220 | $73k | 9.5 mi |
| 61032 | Freeport | 29,020 | $57k | 10.8 mi |
| 61013 | Cedarville | 690 | $68k | 8.9 mi (near) |
| 61024 | Durand | 2,318 | $71k | 9.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.