San Tan Valley, Arizona
19 topographic sheets cover this place, the earliest surveyed in 1907 and the latest in 1994. It stands in the North Pinal census division. It lies in ZIP code area 85140. The Survey maps it on the Sacaton NE quadrangle. 99,894 people lived here at the 2020 count. It stands 1,516 feet above sea level.
Population over time
2 figuresSan Tan Valley grew from 81,321 to 99,894 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.
| Year | People | Change |
|---|---|---|
| 2010 | 81,321 | |
| 2020 | 99,894 | +18,573 (+23%) |
Topographic sheets covering this place
9 surveys from 19 printed sheetsMatched 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.
- 1907 USGS Sacaton quadrangle1:62500, 4 printings
- 1954 USGS Mesa quadrangle1:250000, 4 printings
- 1956 USGS Sacaton NE quadrangle1:24000, 4 printings
- 1957 USGS Mesa quadrangle1:250000
- 1958 USGS Mesa quadrangle1:250000
- 1960 USGS Mesa quadrangle1:250000
- 1964 USGS Mesa quadrangle1:250000
- 1971 USGS Sacaton NE quadrangle1:24000
- 1994 USGS Mesa quadrangle1:100000, 2 printings
Fires near this place
60 since 1992Regional context, not property-specific evidence. The federal wildfire occurrence database lists 60 fires within 5 miles of San Tan Valley between 1992 and 2020, burning about 1,798 acres in total. 1 started naturally. 5 were 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/undetermined | 36 |
| Debris and open burning | 7 |
| Arson/incendiarism | 5 |
| Misuse of fire by a minor | 3 |
| Equipment and vehicle use | 3 |
| Smoking | 2 |
| Railroad operations and maintenance | 2 |
| Recreation and ceremony | 1 |
| Natural | 1 |
The most recent of them, most recent first, with the day each was reported and the service that recorded it.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 8 July 2020 | Missing data/not specified/undetermined | under an acre | Arizona Department of Forestry and Fire Management - State Office | not named |
| 21 July 1992 | Missing data/not specified/undetermined | 90 acres | Arizona Department of Forestry and Fire Management - State Office | not named |
| 15 July 1994 | Equipment and vehicle use | 4.0 acres | Arizona Department of Forestry and Fire Management - State Office | not named |
| 15 July 1993 | Missing data/not specified/undetermined | under an acre | Arizona Department of Forestry and Fire Management - State Office | not named |
| 10 July 1992 | Arson/incendiarism | 320 acres | Arizona Department of Forestry and Fire Management - State Office | not named |
| 8 June 1995 | Misuse of fire by a minor | 20 acres | Arizona Department of Forestry and Fire Management - State Office | not named |
| 8 June 1994 | Missing data/not specified/undetermined | 1.0 acres | Arizona Department of Forestry and Fire Management - State Office | not named |
| 5 June 2006 | Missing data/not specified/undetermined | 40 acres | Arizona Department of Forestry and Fire Management - State Office | OLBERG |
Settlements close enough to share some of these fires:
Mines and quarries near this place
3 within 5 milesRegional context, not property-specific evidence. The federal mineral resources record lists 3 workings within 5 miles of San Tan Valley: 2 prospects, 1 past producer. None of them still produces. What was taken out: Copper, Gold, 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 | Site | Commodity | Status | Recorded |
|---|---|---|---|---|
| Gravel Pit | Sand and Gravel, Construction | Past Producer | ||
| Blackwater Group | Copper, Gold | Prospect | ||
| Vantex Land and Development Co | Copper, Gold | Prospect |
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 | Place | Distance | Sheets |
|---|---|---|---|
| Magma | 4.4 miles | 20 | |
| Olberg | 10.8 miles | 18 | |
| Florence Junction | 11.2 miles | 20 | |
| Sacaton Flats | 11.2 miles | 18 | |
| Blackwater | 11.4 miles | 17 | |
| Cottonwood | 12.2 miles | 18 | |
| Gold Canyon | 12.5 miles | 21 | |
| South Santan | 12.6 miles | 18 |
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 Tan Valley | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q5241708 | The 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 2576311. 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.








