PlainZIP

Rock City, IL · standard

ZIP Code 61070

Stephenson County, Illinois - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

1,130
13/sq mi
$84,167
Median income
$157,000
Median home value
26.3%
Bachelor's or higher

National ZIP placement

Rock City pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.

Top 33%
household income, US ZIPs
28th pct
home value, US ZIPs
13
people per sq mi
90%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 61070 against every reporting US ZIP.

ZIP code 61070 is a sparsely populated ZIP (a standard USPS delivery area) in Rock City, Stephenson County, Illinois, home to just 1,130 residents across 89.7 square miles, a density of 13 people per square mile, in the Chicago time zone.

ZIP 61070 lands in the middle-income range, with a median household income of $84,167 (5% above the average Illinois ZIP), while per-capita income is $45,343. The poverty rate is 3.3%, with unemployment at 5.4%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $157,000 (18% below the average Illinois ZIP), and median rent is $642; owner occupancy is 90.4%.

Educational attainment sits below the national norm: 26.3% of adults hold a bachelor's degree or higher, the median age is 52, and the average commute is 28 minutes. The page also surfaces 6 ZIP codes within roughly 10 miles and 6 more in Stephenson County, so 61070 can be compared with both its immediate and county-level context.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

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Top industries in ZIP 61070

Top 5 sectors by establishment count in Rock City, IL

Which industries have the most business establishments in ZIP 61070.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 61070, Rock City, IL · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

1,130

Population

89.7

Area (sq mi)

13

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 61070?

52.0

Median Age

46.4%

Male

53.6%

Female

7.5%

Foreign-Born

White 83.6%
African American 0.0%
Asian 0.8%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 12.6%
Hispanic or Latino 11.0%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$84,167

Median Household Income

+5% vs state ZIP avg

$45,343

Per Capita Income

3.3%

Poverty Rate

5.4%

Unemployment Rate

27.9 min

Mean Commute Time

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 47.0%
Bachelor's Degree or Higher 26.3%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

588

Total Housing Units

488

Occupied Units

100

Vacant Units

2.71

Avg Household Size

Occupancy Type

Owner 90.4%
Renter 9.6%

$157,000

Median Home Value

-18% vs state ZIP avg

$642

Median Rent

1938

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+29.7%

YoY Change (2022)

160

HPI Index (2000 = 100)

+60%

Total Change Since 2000

Home values in ZIP 61070 have increased 29.7% over the past year (2022). Since 2000, this ZIP has seen +60% cumulative appreciation.

Year Annual Change HPI Index
2018 – 112
2019 +10.2% 124
2020 -2.7% 120
2021 +2.5% 123
2022 +29.7% 160

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2022. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 19 business establishments in ZIP 61070, employing approximately 69 people with a combined annual payroll of $4,478,000.

19

Businesses

69

Employees

$4.5M

Annual Payroll

3

Industry Sectors

Industry Establishments % of Total
Construction 5 26.3%
Transportation and warehousing 3 15.8%
Other services (except public administration) 3 15.8%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 61070 vs 61018 →

ZIP 61070 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 61070 ranks #5 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 61070 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 61070 ranks #3 of 7 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
61018 Dakota, IL 1,080 4.2 mi
61019 Davis, IL 3,550 3.6 mi
61067 Ridott, IL 811 7.8 mi
53550 Juda, WI 1,239 9.9 mi
61060 Orangeville, IL 1,432 8.7 mi
61063 Pecatonica, IL 4,132 9.7 mi

Nationwide ZIPs with similar ACS profiles

Two Census-derived peer sets for ZIP 61070, both outside IL so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).

Similar population

Nearest cross-state ZIPs by resident population (1,130 here; floor ≥1,000).

52065 · New Vienna, IA 1,130 28006 · Alexis, NC 1,130 27919 · Belvidere, NC 1,130 25971 · Lerona, WV 1,130

Similar median household income

Nearest cross-state ZIPs by ACS median household income.

57236 · Garden City, SD $84,167 67142 · Spivey, KS $84,167 68655 · Primrose, NE $84,167 43529 · Hoytville, OH $84,167

More ZIP Codes in Stephenson County

61032 standard
Freeport, IL
Pop: 31,651
61048 standard
Lena, IL
Pop: 4,360
61019 standard
Davis, IL
Pop: 3,550
61062 standard
Pearl City, IL
Pop: 1,983
61060 standard
Orangeville, IL
Pop: 1,432
61018 standard
Dakota, IL
Pop: 1,080

Related Areas

Stephenson County Rock City, IL Illinois

Frequently Asked Questions

What county is ZIP code 61070 in? ▼
ZIP code 61070 (Rock City) is located in Stephenson County, Illinois. Stephenson County contains multiple ZIP codes, see the full list at /counties/stephenson-il.
What is the population of ZIP code 61070? ▼
ZIP code 61070 in Rock City, IL has a population of 1,130 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 61070? ▼
The median household income in ZIP 61070 is $84,167, which is 10% above the national average of $76,288.
What is the average home value in ZIP 61070? ▼
The median home value in ZIP 61070 is $157,000, which is 44% below the national average of $278,155.
What is the demographic makeup of ZIP 61070? ▼
The largest racial group in ZIP 61070 is White at 83.6%. Hispanic or Latino residents make up 11.0% of the population.
How many businesses are in ZIP code 61070? ▼
ZIP code 61070 has 19 business establishments employing approximately 69 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 61070? ▼
The top industries by establishment count in ZIP 61070 are: Construction (5), Transportation and warehousing (3), Other services (except public administration) (3). There are 3 industry sectors represented in total.
How have home values changed in ZIP code 61070? ▼
According to the FHFA House Price Index, home values in ZIP 61070 increased by 29.7% in 2022. Since 2000, home values in this ZIP have appreciated by approximately 60%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 61070? ▼
In ZIP code 61070, 47.0% of residents aged 25+ have a high school diploma or higher, and 26.3% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 61070? ▼
The mean commute time for workers in ZIP code 61070 is 27.9 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 61070? ▼
In ZIP code 61070, approximately 90.4% of occupied housing units are owner-occupied and 9.6% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 61070? ▼
The poverty rate in ZIP code 61070 is 3.3% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Related

Compare this ZIP with another

Read our methodology : how this data is sourced, computed, and verified.

This page explains the source records, calculation, and limits behind the figures shown. ZIP-level Census records are displayed directly; county, state, and national comparisons are calculated from those published records. Read our editorial standards and corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-08-06.