Town guide

Rochester, Illinois

Rochester is a village in Sangamon County, Illinois, home to about 3,766 people across 2.6 square miles. Its ZIP code is 62563.

Homes sold for a median of $136 per square foot in the three months ending August 2026, a seller’s market.

Population3,7661,421 per sq mi
Median home value$238,900Census, as estimated by owners
Price per sq ft$136Sold homes, 3 months to August 2026
Sold over asking56%Latest 3 months

ZIP codes in Rochester

1 ZIP code

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

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We’re writing up Rochester’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 Rochester

Distances

Nearest major airportSt. Louis Lambert International Airport (STL)80 miles away
Closer regional airportAbraham Lincoln Capital Airport (SPI)11 miles away
Nearest city of 250,000+St. Louis, MO83 miles away
Nearest city of 1 million+Chicago, IL176 miles away

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

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

Who represents Rochester

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

Rochester had 3,863 residents in the 2020 census, up 34% since 2000.

It’s the 392nd largest of 1,450 towns in Illinois by population.

Sangamon County grew from 71,593 residents in 1900 to 196,343 in 2020.

Rochester population by census2000: 2,893, 2010: 3,689, 2020: 3,8632,89320003,68920103,8632020

Sangamon County, 1900–2020

Sangamon County population, 1900 to 20201900: 71,593, 1910: 91,024, 1920: 100,262, 1930: 111,733, 1940: 117,912, 1950: 131,484, 1960: 146,539, 1970: 161,335, 1980: 176,089, 1990: 178,386, 2000: 188,951, 2010: 197,465, 2020: 196,34372K’00’10100K’20’30118K’40’50147K’60’70176K’80’90189K’00’10196K’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 86°F in summer, and winter lows average 19°F. About 40.5 inches of rain and melted snow fall in a typical year.

Average high and low temperature and precipitation by month near RochesterJan: high 36°F, low 19°F, 2.2 in; Feb: high 41°F, low 22°F, 2.2 in; Mar: high 52°F, low 31°F, 3 in; Apr: high 65°F, low 41°F, 4.1 in; May: high 74°F, low 53°F, 5.1 in; Jun: high 83°F, low 63°F, 5 in; Jul: high 86°F, low 66°F, 4.4 in; Aug: high 84°F, low 64°F, 2.9 in; Sep: high 78°F, low 56°F, 3.1 in; Oct: high 66°F, low 44°F, 3.1 in; Nov: high 53°F, low 33°F, 3.1 in; Dec: high 41°F, low 24°F, 2.3 in36°19°Jan2.241°22°Feb2.252°31°Mar3.065°41°Apr4.174°53°May5.183°63°Jun5.086°66°Jul4.484°64°Aug2.978°56°Sep3.166°44°Oct3.153°33°Nov3.141°24°Dec2.3Rain and melted snow, inches

Source: NOAA 1991–2020 climate normals, Springfield #2, IL weather station (8 miles away).

Jobs in Sangamon County

80,005 jobs at 4,925 businesses in Sangamon County. The biggest industries by employees:

Largest industries in Sangamon CountyHealth care and social assistance: 20,265 jobs; Retail trade: 10,760 jobs; Hotels and restaurants: 9,187 jobs; Finance and insurance: 5,494 jobs; Other services: 5,333 jobs; Professional services: 4,947 jobs; Administrative and support: 3,940 jobs; Construction: 3,350 jobsHealth care and social assistance 25% Retail trade 13% Hotels and restaurants 12% Finance and insurance 7% Other services 7% Professional services 6% Administrative and support 5% Construction 4%

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

Health care

21 doctors and other health care providers list an office in Rochester.

Nearest hospitals

  • St. Johns HospitalGeneral hospital · emergency room · CMS rating 2 of 5 · Springfield7.5 miles
  • Memorial Medical CenterGeneral hospital · emergency room · CMS rating 3 of 5 · Springfield7.9 miles
  • Taylorville Memorial HospitalCritical access hospital · emergency room · CMS rating 2 of 5 · Taylorville18.3 miles

Providers with an office here

Primary care doctors4
Specialist doctors1
Dentists2
Nurse practitioners and physician assistants2
Mental health providers8
Physical and occupational therapists2
Chiropractors2
Pharmacies1

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 Rochester

Parks (2 nearby)

  • Lake Park · 10 acres1.2 mi
  • Sunset Park & Fishing Area · 1 acres1.0 mi

Grocery stores

  • Dollar General Market2.9 mi
  • Walmart Lejune4.4 mi
  • Aldi4.5 mi
  • County Market5.2 mi

Pharmacies

  • Potter Drug2.7 mi
  • CVS Pharmacy3.9 mi

Libraries

  • Rochester Village Hall;Rochester Public Library2.7 mi
  • Norris L. Brookens Library (BRK)2.9 mi

Museums

  • Trutter Museum2.5 mi

Theaters and performance venues

  • The Muni1.8 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

Established in 1819.

Notable people born here

  • Louis Persinger (1887) · American musician (1887–1966)

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

Schools in Rochester

Public schools here are run by Rochester CUSD 3A. Check each district’s attendance zones for a specific address.

Public schools (5)
SchoolGradesStudentsTypeDistance
Rochester Elem EC-1 SchRochesterPre-K–1402Public2.5 mi
Rochester Elem 2-3Rochester2–3236Public2.6 mi
Rochester Intermediate SchoolRochester4–6394Public3.2 mi
Rochester Jr High SchoolRochester7–8288Public2.7 mi
Rochester High SchoolRochester9–12692Public2.7 mi

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

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Where Rochester is

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Towns near Rochester

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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.