Each edition grades its towns against each other only.
Most of Crystal Lake Park was built recently: 8% of its homes predate 1940 and the median home dates from 1976. Below: maps from 1933 on and the census since 1940.
Crystal Lake Park first appears in the census in 1940.
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 Crystal Lake Park’s history is told.
Wikipedia doesn’t have a history of Crystal Lake Park yet. The photos, dates and memories neighbors add here are how it gets written.
Crystal Lake Park is a Missouri Class 4 city in St. Louis County, Missouri, United States. The population was 508 at the 2020 census.
Its first post office opened in 1940. Between the 2010 and 2020 censuses its population grew from 470 to 508 (+8%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Every edition of the U.S. Geological Survey’s map of Crystal Lake Park. 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 Crystal Lake Park.
Grew from 95 people in 1940 to 508 in 2020, 5 times over.
9 censuses, 1940–2020.
U.S. Census Bureau decennial counts, from the census table on Crystal Lake Park’s Wikipedia page.
Nobody well known was born in Crystal Lake Park itself, so here are the best known from just nearby.
Each neighbor’s History grade, on the same three inputs.
The Crystal Lake Park post office opened in 1940, the earliest record of the town by name (U.S. post office records).
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). How TownRatings grades history →
From 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.
