CDP
Middletown
Middletown is a community name the Census tracks. It helps you name the place, but it usually is not city hall. Start with the county layer unless an official local district says otherwise.
Starting point
Start with the county unless an official district says otherwise.
A Census-designated place is a useful local name, but it usually does not have its own city hall. For permits, records, taxes, courts, and many services, begin with the county layer.
Special districts, utilities, schools, fire agencies, parks, water agencies, coastal rules, and state maps can still control a specific issue.
2025 population
Not available
Land area
1.844 sq mi
Water area
0 sq mi
Directory notes
Local layers to keep on the same page.
Treat this as a community name.
A CDP can be real and useful on the ground, but it normally does not mean there is a city hall for permits, rent rules, business licenses, or local code.
Start with the county.
Lake County is the county layer shown in the Census place-county reference data.
Watch for districts.
Water, sewer, fire, school, parks, utilities, coast, wildfire, and special taxes can still belong to a district or state agency.
County layer
County shown for Middletown
Practical notes
Office, map, permit, and paperwork notes for Middletown
County layer · Outdoors · Reviewed July 1, 2026
Austin Park is Clearlake's big lakeshore lawn
Austin Park gives Clearlake a broad public place on Lakeshore Drive, with beach space, play areas, courts, shade, paths, and community events.
County layer · Outdoors · Reviewed July 1, 2026
Clear Lake water days work better with a bloom check
Clear Lake is a Lake County landmark, but shoreline conditions and harmful algal bloom notices can change by season, weather, and location.
County layer · History and culture · Reviewed July 1, 2026
Lakeport's old courthouse holds a county memory room
The Historic Courthouse Museum in downtown Lakeport helps Lake County tell its Native American, geologic, pioneer, and courtroom stories in one place.
Almanac notes
Stories and local context near Middletown
County layer · Outdoors
Lakeport keeps its downtown turned toward Clear Lake
Lakeport's parks and lakefront gathering spaces show why the city works as a small county-seat town with a strong Clear Lake rhythm.
County layer · Outdoors
Redbud Park gives Clearlake an easy lakefront door
Redbud Park puts Clearlake close to the everyday side of Clear Lake, with a launch, pier, picnic space, shade, and room to watch the water.
County layer · History and culture
The Geysers turn mountain steam into power
The Geysers near the Lake and Sonoma county line turned a long-known thermal area into one of California's most important geothermal power stories.