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HomeIllinoisStephenson CountyRock City

Rock City, Illinois: commercial real estate data.

Rock City is a Census village of 441 people across 0.14 square miles of land, in Stephenson County. Median household income is $68,125, 79.9 percent of occupied homes are owned.

Underlined figures are computed by MMCG Analytics, not published by the agency.

Rock City

What Rock City is

  • Census place typevillage
  • Land area0.14 sq mi
  • Water area0 sq mi
  • Population per square mile of land3,254 plus or minus 1,210
  • County holding the largest share of its areaStephenson County, 100.0 percent

US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Rock City

How many people live in Rock City

  • Population441 plus or minus 164
  • Median age26.8 plus or minus 13.5
  • Population under 18167 plus or minus 99
  • Share under 1837.9 percent plus or minus 17.5
  • Population 65 and over62 plus or minus 25
  • Share 65 and over14.1 percent
  • Households154 plus or minus 40
  • Family households99 plus or minus 29
  • Share of households that are families64.3 percent

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Rock City

Income and work in Rock City

  • Median household income$68,125 plus or minus $24,647
  • Per capita income$26,036 plus or minus $7,271
  • Civilian labor force206 plus or minus 63
  • Employed198 plus or minus 61
  • Unemployed8 plus or minus 8
  • Unemployment rate3.9 percent plus or minus 3.7
  • Adults 25 and over226 plus or minus 58
  • Adults 25 and over with a high school diploma or higher96.0 percent
  • Adults 25 and over with a bachelor degree or higher11.1 percent plus or minus 8.8
  • Adults 25 and over with a graduate degree1.3 percent plus or minus 6.0

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Rock City

Housing in Rock City

  • Housing units157 plus or minus 39
  • Occupied units154 plus or minus 40
  • Vacant units3 plus or minus 7
  • Vacancy rate1.9 percent plus or minus 4.4
  • Owner occupied123 plus or minus 31
  • Renter occupied31 plus or minus 25
  • Ownership rate79.9 percent plus or minus 28.9
  • Median owner-occupied home value$122,700
  • Median gross rent, monthly$842 plus or minus $256
  • Annual rent as a share of median income14.8 percent plus or minus 7.0
  • Single family units126 plus or minus 30
  • Share single family80.3 percent plus or minus 27.6
  • Units in buildings of two or more25 plus or minus 27
  • Share in buildings of two or more15.9 percent plus or minus 16.8
  • Mobile homes6 plus or minus 7
  • Median year structure built1954

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Rock City

How Rock City gets to work

  • Workers 16 and over who commute178 plus or minus 60
  • Commuting under 15 minutes32 plus or minus 23
  • Share commuting under 15 minutes18.0 percent plus or minus 11.1
  • Commuting 30 minutes or more73 plus or minus 37
  • Share commuting 30 minutes or more41.0 percent plus or minus 15.5
  • Drove alone75.4 percent plus or minus 18.6
  • Carpooled14.9 percent plus or minus 9.7
  • Public transport0.0 percent
  • Walked0.0 percent
  • Worked from home8.7 percent plus or minus 5.5

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Rock City

SBA loans in Rock City (504)

  • Approvals2
  • Gross approval$2,876,000
  • Average approval$1,438,000
  • Median approval$1,438,000
  • Largest approval$2,268,000
  • Jobs supported10
  • Loans with a final outcome2
  • Charged off0
  • Median term120 months
  • Distinct CDCs1

Counted by borrower city: approvals to borrowers whose address is in Rock City, in any county, FY2010 to FY2026. Only 2 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.

US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.

Stephenson County, not Rock City

Stephenson County context, not Rock City figures

  • Establishments in Stephenson County1,003
  • Covered employment, Stephenson County17,367
  • Average annual pay, Stephenson County$55,932
  • Housing units permitted, Stephenson County5

Every figure in this section is published for Stephenson County as a whole and is not a measurement of Rock City.

All Stephenson County figures →

US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.

Coverage

What this page does not hold.

Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →

Common questions

Rock City questions, answered from the record.

How many people live in Rock City, Illinois?

441, in 154 households. Rock City village covers 0.14 square miles of land, which is 3,254 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

What county is Rock City in?

Stephenson County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.

What is the median household income in Rock City?

$68,125. The median owner-occupied home is valued at $122,700. Median gross rent is $842 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Are the county figures on this page Rock City figures?

No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Stephenson County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Rock City.

Is zoning published for Rock City?

No. Nothing on this page presents parcel level zoning.