Peaked at 1,337 in 1970; 912 people lived here in 2020.
9 censuses, 1940–2020.
U.S. Census Bureau decennial counts, from the census table on Pasadena Hills’ Wikipedia page.
The story so far
Pasadena Hills, in brief
Wikipedia doesn’t have a history of Pasadena Hills yet. The photos, dates and memories neighbors add here are how it gets written.
Pasadena Hills is a city in St. Louis County, Missouri, United States. As of the 2020 census, Pasadena Hills had a population of 912. The entire city is listed on the National Register of Historic Places.
Its population held steady between the last two censuses: 930 in 2010, 912 in 2020.
Intro from Wikipedia. Population: U.S. Census Bureau.
Every edition of the U.S. Geological Survey’s map of Pasadena Hills. Tap a year, or press play to watch the town change.
1933Clayton sheet · 1:24,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Pasadena Hills.
Famous people
Famous people close to Pasadena Hills
Nobody well known was born in Pasadena Hills itself, so here are the best known from just nearby.
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 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.