Town guide

Rock Falls, Illinois

Rock Falls is a city in Whiteside County, Illinois, home to about 8,587 people across 4.0 square miles. Its ZIP code is 61071.

Homes sold for a median of $109 per square foot in the three months ending August 2026, a seller’s market.

Population8,5872,158 per sq mi
Median home value$83,900Census, as estimated by owners
Price per sq ft$109Sold homes, 3 months to August 2026
Sold over asking21%Latest 3 months

ZIP codes in Rock Falls

1 ZIP code

Each card is that ZIP code’s whole market, including any part outside Rock Falls. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology

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We’re writing up Rock Falls’s story and what everyday life there is like, for people thinking about moving in.

  • History
  • What it’s like to live there
  • Getting around
  • Things to do

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Around Rock Falls

Distances

Nearest major airportChicago O'Hare International Airport (ORD)93 miles away
Closer regional airportChicago Rockford International Airport (RFD)43 miles away
Nearest city of 250,000+Madison, WI92 miles away
Nearest city of 1 million+Chicago, IL103 miles away

Straight-line distances from the center of Rock Falls; driving is longer.

Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.

Who represents Rock Falls

Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.

Population over time

Rock Falls had 8,789 residents in the 2020 census, down 8% since 2000.

It’s the 251st largest of 1,450 towns in Illinois by population.

Whiteside County grew from 34,710 residents in 1900 to 55,691 in 2020.

Rock Falls population by census2000: 9,580, 2010: 9,266, 2020: 8,7899,58020009,26620108,7892020

Whiteside County, 1900–2020

Whiteside County population, 1900 to 20201900: 34,710, 1910: 34,507, 1920: 36,174, 1930: 39,019, 1940: 43,338, 1950: 49,336, 1960: 59,887, 1970: 62,877, 1980: 65,970, 1990: 60,186, 2000: 60,653, 2010: 58,498, 2020: 55,69135K’00’1036K’20’3043K’40’5060K’60’7066K’80’9061K’00’1056K’20

Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).

Weather by month

Average highs peak around 83°F in summer, and winter lows average 14°F. About 40.6 inches of rain and melted snow fall in a typical year, with about 31 inches of snow.

Average high and low temperature and precipitation by month near Rock FallsJan: high 29°F, low 14°F, 2 in; Feb: high 34°F, low 17°F, 1.8 in; Mar: high 46°F, low 28°F, 2.6 in; Apr: high 60°F, low 39°F, 4 in; May: high 71°F, low 51°F, 4.8 in; Jun: high 80°F, low 61°F, 5.6 in; Jul: high 83°F, low 64°F, 4.3 in; Aug: high 81°F, low 62°F, 4.2 in; Sep: high 75°F, low 54°F, 3.7 in; Oct: high 63°F, low 42°F, 3 in; Nov: high 48°F, low 31°F, 2.4 in; Dec: high 35°F, low 20°F, 2.2 in29°14°Jan2.034°17°Feb1.846°28°Mar2.660°39°Apr4.071°51°May4.880°61°Jun5.683°64°Jul4.381°62°Aug4.275°54°Sep3.763°42°Oct3.048°31°Nov2.435°20°Dec2.2Rain and melted snow, inches

Source: NOAA 1991–2020 climate normals, Dixon 1w, IL weather station (10 miles away).

Jobs in Whiteside County

17,838 jobs at 1,158 businesses in Whiteside County. The biggest industries by employees:

Largest industries in Whiteside CountyManufacturing: 4,177 jobs; Health care and social assistance: 3,340 jobs; Retail trade: 2,427 jobs; Hotels and restaurants: 1,644 jobs; Transportation and warehousing: 1,586 jobs; Company headquarters: 698 jobs; Construction: 680 jobs; Other services: 616 jobsManufacturing 23% Health care and social assistance 19% Retail trade 14% Hotels and restaurants 9% Transportation and warehousing 9% Company headquarters 4% Construction 4% Other services 4%

Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).

Health care

55 doctors and other health care providers list an office in Rock Falls.

Nearest hospitals

  • Cgh Medical CenterGeneral hospital · emergency room · CMS rating 1 of 5 · Sterling2.4 miles
  • Osf Saint Katharine Medical CenterGeneral hospital · emergency room · CMS rating 2 of 5 · Dixon12.2 miles
  • Morrison Community HospitalCritical access hospital · emergency room · Morrison13.9 miles

Providers with an office here

Primary care doctors7
Specialist doctors2
Dentists11
Nurse practitioners and physician assistants9
Mental health providers15
Optometrists3
Chiropractors8
Pharmacies2

Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.

Places in and around Rock Falls

Parks (15 nearby)

  • Centennial Park · 54 acres0.4 mi
  • Lawrence Park · 26 acres1.2 mi
  • Sieglinger Park · 17 acres0.6 mi
  • Dillon Park · 7 acres0.5 mi
  • Wallingford Park · 6 acres0.7 mi
  • Seward Park · 5 acres1.4 mi

Grocery stores

  • County Market1.6 mi
  • Kroger3.0 mi
  • ALDI3.6 mi
  • Walmart Supercenter4.2 mi

Pharmacies

  • CVS Pharmacy3.0 mi

Libraries (1 nearby)

  • Rock Falls Public Library0.5 mi

Museums

  • Lincoln Manahan Home Museum1.7 mi
  • Engine Number 731.8 mi
  • Dillon Home Museum1.8 mi
  • Sterling-Rock Falls Historical Society Museum1.8 mi

Theaters and performance venues (1 nearby)

  • RB&W Park Amphitheatre1.2 mi

Counts are within about 1.5 miles of the center of town.

Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.

Colleges, teams and notable people

Notable people born here

  • Louie Bellson (1924) · American jazz drummer (1924–2009)

Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.

Schools in Rock Falls

Public schools here are run by East Coloma - Nelson CESD 20, Rock Falls ESD 13, Montmorency CCSD 145 and others. Check each district’s attendance zones for a specific address.

Public schools (11)
SchoolGradesStudentsTypeDistance
East Coloma - Nelson Elem SchRock FallsPre-K–8214Public1.6 mi
Riverdale PreSchool CenterRock FallsPre-K145Public2.0 mi
Dillon Elementary SchoolRock FallsK–2278Public0.4 mi
Montmorency CCSD #145Rock FallsK–8209Public3.2 mi
Thome Ed SchoolRock FallsK–12—Special Education0.9 mi
Merrill Elem SchoolRock Falls3–5258Public0.7 mi
Regional Center for ChangeRock Falls6–12—Alternative Education0.9 mi
Regional Center For Change ALOPRock Falls6–12—Alternative Education0.9 mi
Rock Falls Middle SchoolRock Falls6–8246Public0.6 mi
Rock Falls Township High SchoolRock Falls9–12530Public1.1 mi
Bi-County-Jr HS LIfe Skills-RockRock Falls——Special Education0.6 mi
Private schools (1)
SchoolGradesStudentsAffiliationDistance
St Andrew Catholic Elementary SchoolRock FallsPre-K–884Roman Catholic0.7 mi

Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.

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Towns near Rock Falls

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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.