Each edition grades its towns against each other only.
More historic than 19% of U.S. towns. What drives it
Most of Jerome was built recently: 5% of its homes predate 1940 and the median home dates from 1959. Below: maps from 1907 on and the census since 1940.
More historic than 19% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Jerome is more historic than 19% of U.S. towns. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.
Few Illinois towns list much on the Register (a typical Illinois town has 0.5 per 10,000 residents, the U.S. 2.4), so Jerome’s 0.0 sits below most of its state (28% of Illinois towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
Founding year: our sources. Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
Read from the archive, the National Register and the record. The page puts what stands out first.
The first neighbors to add old photos shape how Jerome’s history is told.
Every edition of the U.S. Geological Survey’s map of Jerome. Tap a year, or press play to watch the town change.
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Jerome.
Wikipedia doesn’t have a history of Jerome yet. The photos, dates and memories neighbors add here are how it gets written.
Jerome is a village in Sangamon County, Illinois, United States. As of the 2020 census, Jerome had a population of 1,692. It is part of the Springfield, Illinois Metropolitan Statistical Area.
Between the 2010 and 2020 censuses its population grew from 1,656 to 1,692 (+2%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Grew from 424 people in 1940 to 1,692 in 2020, 3 times over.
9 censuses, 1940–2020.
U.S. Census Bureau decennial counts, from the census table on Jerome’s Wikipedia page.
Nobody well known was born in Jerome itself, so here are the best known from just nearby.
Each neighbor’s History grade, on the same three inputs.
Jerome is more historic than 19% of U.S. towns. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
5% of Jerome’s homes were built before 1940 (Census estimate, ±3.5 points), against a typical 11% for an Illinois town; the median home was built in 1959.
What the archives can’t tell you, neighbors can.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021).
From Wikimedia Commons (2), U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
2011
2011
