South Lyon, Michigan

South Lyon grew from 11,327 to 11,746 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.

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.

• 1902 USGS South Lyon quadrangle1:62500
• 1904 USGS Ann Arbor quadrangle1:125000, 2 printings
• 1906 USGS South Lyon quadrangle1:62500, 5 printings
• 1908 USGS Ann Arbor quadrangle1:125000
• 1954 USGS Detroit quadrangle1:250000
• 1961 USGS Detroit quadrangle1:250000, 2 printings
• 1965 USGS Detroit quadrangle1:250000
• 1965 USGS South Lyon quadrangle1:24000, 4 printings
• 1985 USGS Detroit quadrangle1:100000
• 1989 USGS Detroit quadrangle1:100000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 13 fires within 5 miles of South Lyon between 1994 and 2020, burning about 53 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.

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

Settlements close enough to share some of these fires:

• New Hudson
• Wixom

Every fire recorded in Oakland County

Regional context, not property-specific evidence. The federal mineral resources record lists 8 workings within 5 miles of South Lyon: 8 producers. All of them still produce. What was taken out: 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.

Every working recorded in Oakland County

Regional context, not property-specific evidence. The National Weather Service names South Lyon in 27 storm reports between 1998 and 2025: 17 thunderstorm wind, 7 hail, 2 lightning, 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.

Every storm recorded in Oakland County

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

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.

This settlement is recorded in the Geographic Names Information System as feature 638381. 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.