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Pomeroy, Iowa

8 topographic sheets cover this place, the earliest surveyed in 1954 and the latest in 1984. It stands in Butler Township. It lies in ZIP code area 50575. The Survey maps it on the Pomeroy quadrangle. 526 people lived here at the 2020 count. It stands 1,240 feet above sea level.

Pomeroy within Calhoun County

On record in Pomeroy

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 1 record

Population over time

2 figures

Pomeroy fell from 662 to 526 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
2010662
2020526-136 (-21%)

Topographic sheets covering this place

5 surveys from 8 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

1 since 2005

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 1 fire within 5 miles of Pomeroy in 2005, burning about 10 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/undetermined1

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
7 November 2005Missing data/not specified/undetermined10 acresIowa State Fire Marshal's Officenot named

Settlements close enough to share some of these fires:

Every fire recorded in Calhoun County

Storms near this place

32 since 1998

Regional context, not property-specific evidence. The National Weather Service names Pomeroy in 32 storm reports between 1998 and 2025: 15 hail, 8 thunderstorm wind, 5 heavy rain, 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
June 2010Heavy RainPomeroy$50,000Six inches of water standing in streets. Half inch diameter hail and wind gusts to 20 MPH.
June 2010Flash FloodPomeroy$50,000Underpass and viaduct flooding along Highway 4.
September 2012Thunderstorm WindPomeroy$25,000Numerous large tree branches greater than 6 inches in diameter were down. Loose metal sheeting was observed blowing through the streets.
October 2013HailPomeroy$20,000no account filed
August 2010Thunderstorm WindPomeroy$15,000Off Duty Sioux Falls NWS employee reported trees and street signs down in town.
August 2007Flash FloodPomeroy$10,000no account filed
July 2007Thunderstorm WindPomeroy$5,000no account filed
May 2004Thunderstorm WindPomeroy$5,000no account filed
May 2002Thunderstorm WindPomeroy$5,000no account filed
May 2014Thunderstorm WindPomeroy$2,000Large tree limb down, chair blown off the deck and a power transformer blown.
June 2010Thunderstorm WindPomeroy$2,000Small branches blown down with power knocked out.
August 2008HailPomeroy$2,000Nickel to quarter size hail was reported.
July 2003HailPomeroy$2,000no account filed
June 2003Thunderstorm WindPomeroy$2,000no account filed
May 1998HailPomeroy$100no account filed
May 2023Tornado (EFU)Pomeroy-Tornado developed east of Pomeroy and moved north passing into Pocahontas county shortly after forming. The tornado remained in open fields in Calhoun county and did not impact any damage indicators, hence the EFU rating for this portion of the path.
September 2019HailPomeroy-Public reported dime to quarter sized hail at the Casey's in Pomeroy. Time estimated from radar.
August 2018Heavy RainPomeroy-Public reported heavy rainfall of 5.5 inches.
June 2018Heavy RainPomeroy-Public reported heavy rainfall of 2.05 inches.
June 2017HailPomeroy-Trained spotter reported hail increasing in size to quarters.
June 2017HailPomeroy-Trained spotter reported nickel to penny sized hail.
March 2016HailPomeroy-Trained spotter reported dime to nickel sized hail.
September 2015HailPomeroy-Trained spotter reported one inch hail.
September 2015HailPomeroy-Trained spotter reported one inch hail.
August 2010Heavy RainPomeroy-Calhoun County Law Enforcement reports streets in Pomeroy inundated as well as many county roads. Highway 4 in Pomeroy had standing water 2 feet deep in underpasses.
August 2010Heavy RainPomeroy-Highway 7 closed at underpass in Pomeroy due to flooding.
June 2025HailPomeroy-no account filed
June 2014HailPomeroy-no account filed
September 2012HailPomeroy-no account filed
June 2010HailPomeroy-no account filed
June 2008Funnel CloudPomeroy-no account filed
July 2003HailPomeroy-no account filed

Every storm recorded in Calhoun 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
Knoke4.8 miles9
Twin Lakes5.2 miles8
Jolley5.3 miles8
Manson8.1 miles9
Lavinia10.4 miles8
Rockwell City11.1 miles8
Richard11.8 miles8
Sherwood13.4 miles8

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 PomeroyAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q1928030The 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 460354. 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.

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.