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San Manuel, Arizona

28 topographic sheets cover this place, the earliest surveyed in 1911 and the latest in 1996. It stands in the San Manuel census division. It lies in ZIP code area 85631. The Survey maps it on the Campo Bonito quadrangle. 3,114 people lived here at the 2020 count. It stands 3,451 feet above sea level.

San Manuel within Pinal County

Population over time

3 figures

San Manuel fell from 4,375 to 3,114 between 2000 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
20004,375
20103,551-824 (-19%)
20203,114-437 (-12%)

Topographic sheets covering this place

13 surveys from 28 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

20 since 1995

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 20 fires within 5 miles of San Manuel between 1995 and 2017, burning about 204 acres in total. 5 started naturally. 1 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/undetermined8
Natural5
Smoking3
Debris and open burning2
Equipment and vehicle use1
Arson/incendiarism1

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
1 September 2001Debris and open burningunder an acreArizona Department of Forestry and Fire Management - State OfficeCLARK WASH
6 August 1995Missing data/not specified/undetermined10 acresArizona Department of Forestry and Fire Management - State Officenot named
10 August 1995Natural40 acresArizona Department of Forestry and Fire Management - State Officenot named
31 July 1995Debris and open burning2.5 acresArizona Department of Forestry and Fire Management - State Officenot named
24 July 1999Naturalunder an acreArizona Department of Forestry and Fire Management - State OfficeTAILINGS
19 July 2008Naturalunder an acreArizona Department of Forestry and Fire Management - State OfficeREDDINGTON
18 July 1995Missing data/not specified/undeterminedunder an acreArizona Department of Forestry and Fire Management - State Officenot named
14 July 2001Natural5.0 acresArizona Department of Forestry and Fire Management - State OfficeSMELTER WASH

Settlements close enough to share some of these fires:

Every fire recorded in Pinal County

Mines and quarries near this place

9 within 5 miles

Regional context, not property-specific evidence. The federal mineral resources record lists 9 workings within 5 miles of San Manuel: 4 producers, 3 plants, 1 occurrence, 1 past producer. 7 still produce. What was taken out: Copper, Tungsten, Lead, Molybdenum, Gypsum-Anhydrite. 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
Day Star PropertyGypsum-AnhydritePast Producer
Magma Acin PlantSulfur, Sulfuric AcidProducer
MammothTungsten, Lead, MolybdenumOccurrenceWulfenite
San Manuel Lime Pit & PlantCalciumProducer
San Manuel Limestone QuarryStone, Crushed/BrokenProducer
(Facility) Magma Refinery and Wire MillCopperPlant
(Facility) San Manuel Copper RefineryCopperPlant
(Facility) San Manuel Copper SmelterCopperPlant
San Manual ConcentratorCopperProducer

Every working recorded in Pinal County

Storms near this place

18 since 1995

Regional context, not property-specific evidence. The National Weather Service names San Manuel in 18 storm reports between 1995 and 2025: 11 hail, 4 thunderstorm wind, 2 flash flood, 1 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
July 2021Flash FloodSan Manuel$750,000Heavy rain of 1 to 1.5 fell in less than 1 hour along the entire length of the San Pedro River from San Manuel to Dudleyville and 3 fell near Dudleyville caused the river to rise rapidly, with a greater than 7 foot rise measured in one hour near Mammoth. Extensive flash flooding and severe damage to nearby roadways occurred in the San Manuel, Mammoth and Dudleyville areas.
July 2015Flash FloodSan Manuel$225,000Heavy rain of 2 inches in an hour caused flash flooding in San Manuel, which caused severe road damage. Public works estimated hundreds of thousands of dollars in damage to Avenues A, B, G, and Webb Drive.
July 2009Thunderstorm WindSan Manuel$3,000Severe thunderstorm winds downed several trees, including one tree that was 60 feet tall in San Manuel. Thunderstorm winds also blew down some fencing in the area. Large tree branches were downed by the same thunderstorm in Mammoth.
July 2018Thunderstorm WindSan Manuel$2,000Thunderstorm winds blew down fences and damaged a few trees in San Manuel.
August 2003Thunderstorm WindSan Manuel$1,000Severe thunderstorms moved west towards San Maneul and Oracle. Strong winds knocked down a teepee that was supported by 10 six inch diameter poles.
September 2025HailSan Manuel-Several photos and videos showing quarter size hail in San Manuel.
September 2025HailSan Manuel-Photo and video of numerous 1 inch hail stones.
September 2025HailSan Manuel-Social media post of photo with 1 inch diameter hail. Time estimated based on radar.
July 2009HailSan Manuel-A trained spotter reported 0.75 inch hail at San Manuel.
August 2003Thunderstorm WindSan Manuel-Severe thunderstorms developed over the Gailuro Mountains and moved west. A spotter recorded gusts to 63 mph in San Manuel and a shriff's dispatch reported several uprooted trees.
August 1998FloodSan Manuel-Thunderstorm dumping 1.16 inches of rain caused street flooding in San Manuel.
May 1997HailSan Manuel-Dime size hail was reported.
February 1995HailSan Manuel-A carport collapsed on top of a car following a lightning strike.
July 2016HailSan Manuel-no account filed
August 2003HailSan Manuel-no account filed
August 1998HailSan Manuel-no account filed
October 1997HailSan Manuel-no account filed
September 1995HailSan Manuel-no account filed

Every storm recorded in Pinal 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
Highjinks6.0 miles28
Campo Bonito6.2 miles28
Oracle7.5 miles20
Tiger7.9 miles25
Fordville8.0 miles25
Mammoth8.5 miles25
North Mammoth9.3 miles25
Casa del Oro11.4 miles20

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 San ManuelAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q2786066The 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 34022. 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.