BlockBefore

Affton, Missouri

23 topographic sheets cover this place, the earliest surveyed in 1933 and the latest in 1998. It stands in Gravois Township. It lies in ZIP code area 63123. The Survey maps it on the Webster Groves quadrangle. 20,417 people lived here at the 2020 count. It stands 617 feet above sea level.

Affton within St. Louis County

On record in Affton

Buildings and businesses the archive holds for this place. Each opens its own page, with the source record it came from.

On the National Register 4 records

Population over time

2 figures

Affton grew from 20,307 to 20,417 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.

YearPeople Change
201020,307
202020,417+110 (+1%)

Topographic sheets covering this place

11 surveys from 23 printed sheets

Matched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.

Fires near this place

4 since 2006

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 4 fires within 5 miles of Affton between 2006 and 2014, burning about 3 acres in total. None started naturally. None was recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

Reported cause Fires
Missing data/not specified/undetermined2
Debris and open burning1
Misuse of fire by a minor1

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

DateCause SizeReported by Name on the report
15 August 2007Missing data/not specified/undeterminedunder an acreMissouri State Fire Marshal's Officenot named
22 March 2014Misuse of fire by a minor1.0 acresMissouri Department of Conservationnot named
28 February 2014Debris and open burning1.0 acresMissouri Department of Conservationnot named
9 October 2006Missing data/not specified/undetermined1.0 acresMissouri State Fire Marshal's Officenot named

Settlements close enough to share some of these fires:

Every fire recorded in St. Louis County

Mines and quarries near this place

10 of 50 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 50 workings within 5 miles of Affton: 47 past producers, 3 producers. 3 still produce. What was taken out: Stone, Crushed/Broken, Clay, Fire Clay (Refractory), Sand and Gravel, Construction. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Where SiteCommodity StatusRecorded
Krummel and Buchner MineCoal, Fire Clay (Refractory)Past Producer
Parker-Russell Fireclay MineFire Clay (Refractory), CoalPast Producer
Tole and Thorp Fireclay MineFire Clay (Refractory), CoalPast Producer
Unknown - S&GSand and Gravel, ConstructionPast Producer
Unknown - S&GSand and Gravel, ConstructionPast Producer
Coffin MineFire Clay (Refractory)Past Producer
Gilker Fireclay MineFire Clay (Refractory)Past Producer
Grandview Fireclay MineFire Clay (Refractory)Past Producer
Jamieson MineFire Clay (Refractory)Past Producer
Jamieson PitFire Clay (Refractory)Past Producer

Every working recorded in St. Louis County

Storms near this place

26 since 1993

Regional context, not property-specific evidence. The National Weather Service names Affton in 26 storm reports between 1993 and 2025: 12 thunderstorm wind, 12 hail, 2 flash flood. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

WhenEvent Place namedHarm What the report says
May 1993Thunderstorm WindAffton$5,000The public reported trees and power lines down.
May 2023Flash FloodAffton-Between 3 and 6 inches of rain fell in a short amount of time over portions of southeastern St. Louis County. Several roads were flooded in Affton, Crestwood, Shrewsbury, and Oakville. Both directions of I-55 was briefly flooded near the Bayless Avenue exit. Also, the parking lot at Cedar Creek Lodge Apartments was flooded with several feet of water from the nearby creek. At least a dozen cars were flooded in the parking lot.
September 2012Thunderstorm WindAffton-Thunderstorm winds blew down numerous large tree limbs.
July 2012Thunderstorm WindAffton-Thunderstorm wind blew down a large tree. Part of the tree landed on a house causing moderate damage.
June 2008Thunderstorm WindAffton-Thunderstorm winds uprooted a 30 foot tall, 3 foot diameter pine tree in Affton. It fell onto a garage causing moderate damage.
July 2007HailAffton-Hail up to nickel size was reported to have fallen in the Affton area for about 20 minutes.
August 2007Thunderstorm WindAffton-Numerous large tree limbs were blown down.
July 2006Thunderstorm WindAffton-Several large trees were blown over as well as numerous power lines and tree limbs.
July 2006Thunderstorm WindAffton-Thunderstorm winds caused moderate roof damage to a building in Affton. Also, numerous trees, tree limbs and power lines were blown down.
April 2005Flash FloodAffton-Very heavy rain fell in a short amount of time over St. Louis County. In Affton, Grant Road in Grantwood Village, between Gravois Road and Pardee Road, was briefly closed due to fast rising water from the creek along Grant Road.
June 2005Thunderstorm WindAffton-Amateur radio spotters reported a large tree limb blown onto a house in the Affton area.
April 2003HailAffton-Amateur radio spotters reported 1 inch hail.
May 2003HailAffton-Storm spotters reported 3/4inch hail in Affton.
June 2000Thunderstorm WindAffton-Storm spotters reported some trees down in the Affton area.
September 2000Thunderstorm WindAffton-Amateur radio spotters reported trees and power lines down in the Affton area of south St. Louis County.
August 2000Thunderstorm WindAffton-Amateur radio spotters reported trees down near the intersection of Sappinton and Concord Roads.
March 2025HailAffton-no account filed
June 2019HailAffton-no account filed
May 2018HailAffton-no account filed
June 2018HailAffton-no account filed
May 2011HailAffton-no account filed
June 2009HailAffton-no account filed
June 2009HailAffton-no account filed
June 2008HailAffton-no account filed
May 2008HailAffton-no account filed
June 2003Thunderstorm WindAffton-no account filed

Every storm recorded in St. Louis County

Nearest settlements

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

Map PlaceDistance Sheets
Grantwood0.7 miles23
Lakeshire0.8 miles23
Grantwood Village1.1 miles23
Wilbur Park1.3 miles23
Saint George1.4 miles23
Marlborough1.4 miles23
Green Park1.9 miles23
Mackenzie2.2 miles23

Elsewhere

Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.

Wikipedia article on AfftonAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q382985The structured record the population and elevation above come from. Public domain (CC0).

Provenance

This settlement is recorded in the Geographic Names Information System as feature 755674. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.

Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.

Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.

Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.