How Lake County has grown
Drag the year. The map is drawn from Lake County's own GIS layers (roads, lakes, city limits, districts) and the data layers come from the state tax roll and the county's planning, public works and GIS records; every layer names its source and year in the legend. Turn on the aerial photo to see the county's own survey closest to the year, from 1941 to 2025. Numbers are shown as the source gives them.
Tap a section or a point for its numbers and source. On a phone, use two fingers to move the map.
Sources
- Aerial photography: Lake County GIS image services for 1941, 1947, 1958, 1972, 1979, 1987, 1998, 2002, 2004, 2006, 2008, 2009, 2010, 2011, 2013, 2014, 2017, 2019, 2022, 2025 (service directory).
- County Boundary: Lake County GIS (GeoHub), 1 features, read 2026-11-04.
- City Limits: Lake County GIS (GeoHub), 14 features, read 2026-11-04.
- Water Bodies: Lake County GIS (GeoHub), 6,825 features, read 2026-11-04.
- Commission Districts: Lake County GIS (GeoHub), 5 features, read 2026-11-04.
- Voting Precincts: Lake County GIS (GeoHub), 184 features, read 2026-11-04.
- Streets: Lake County Public Works, 16,691 features, read 2026-11-04.
- Highways and major roads: Lake County Public Works, 2,096 features, read 2026-11-04.
- School Board member districts: Lake County Schools GIS, 5 features, read 2026-11-04.