Mountains
Lake County
Property taxes, marriage licenses, vehicle services, and many public records run through Lake County. Permits and local rules may sit with a town or city instead, so match the office to the exact address.
Official county shortcuts
Take the task to the office that handles it
These links go straight to the official county or regional office shown. Check that page for current documents, hours, appointments, fees, and address-specific instructions. A city may run its own permit office.
Property tax snapshot
Typical property tax in Lake County
The average total mill levy across Lake County was about 67.8 mills for tax year 2023 — below the statewide average of about 81 mills. On a $500,000 home, that comes to roughly $2,155 a year, using Colorado's 2026 residential rules: 7.05% on school mills, and 6.8% on the rest after the local actual-value adjustment.
This is the county average across all tax areas. Your parcel's actual mill levy depends on its exact tax area — a metro or special district can add many mills on top — so confirm the real number with the county assessor.
Sales tax: the state charges 2.9% and Lake County adds 4%, for 6.9% before any city or special district. See Colorado sales tax rates ->
Source: Colorado Division of Property Taxation, 53rd Annual Report (2023) — Average Levies by County.
Incorporated places in this county
These cities and towns touch Lake County. Some cross a county line. Every name opens a direct place page, and selected places include a fuller local guide.
Get to know Lake County
The history, land, and character behind the place.
Outdoors and wildfire
Lake County's fourteeners sit on national forest land with its own rules
Mount Elbert, Mount Massive, and the high country around Leadville are managed by the Forest Service through the Leadville Ranger District.
Read note ->Outdoors and wildfire
Mount Massive sits in a designated wilderness with stricter rules
Mount Massive and the country around it are inside the Mount Massive Wilderness, where wilderness rules limit what you can do beyond ordinary national forest.
Read note ->Outdoors and wildfire
The Arkansas River starts in Lake County and is Gold Medal water
The Arkansas River begins near Leadville and flows into the Arkansas Headwaters Recreation Area, a long stretch of Colorado Gold Medal trout water co-managed by Colorado Parks and Wildlife.
Read note ->History and culture
Leadville is home to the National Mining Hall of Fame and Museum
The National Mining Hall of Fame and Museum in Leadville tells the story of American mining from a former school building in town.
Read note ->Money and taxes (7)
Money and taxes
In Lake County, the assessor's value is not the whole tax bill
A Lake County tax bill is the assessor's value times a state assessment rate times local mill levies, not value alone.
Read note ->Money and taxes
Lake County value protests start with the Notice of Value
A Notice of Value opens a protest window set by law, so read it the day it arrives and don't let the deadline slip.
Read note ->Home and property (2)
Home and property
Leadville's mining past includes a Superfund cleanup site
The California Gulch Superfund site covers part of central Lake County, and the EPA is the official source for its boundaries and cleanup status.
Read note ->Home and property
Radon is a normal home question in high-country Lake County
Radon is a common indoor-air concern in Colorado homes, and testing is the only way to know a specific Lake County house, regardless of how new or how high it is.
Read note ->Water and land (3)
Water and land
Turquoise Lake has boat ramps, campgrounds, and required boat inspections
Turquoise Lake near Leadville is a developed Forest Service recreation area with boat ramps and campgrounds, and trailered or motorized boats need a Colorado aquatic nuisance species inspection.
Read note ->Water and land
The reservoirs around Leadville are part of a big water project
Twin Lakes and Turquoise Lake are tied into the federal Fryingpan-Arkansas Project, which moves and stores water for use downstream.
Read note ->Outdoors and wildfire (7)
Outdoors and wildfire
Two main trailheads reach Mount Elbert, and they start in different places
Mount Elbert has a North and a South trailhead off different roads south of Leadville, and knowing which one you want saves a long, confusing drive.
Read note ->Outdoors and wildfire
The Leadville National Fish Hatchery is a working piece of 1800s history
The Leadville National Fish Hatchery, established in 1889, is one of the country's oldest federal fish hatcheries and is open to visitors near Leadville.
Read note ->Cars and driving (2)
Cars and driving
Independence Pass closes for the winter, so plan around it
State Highway 82 over Independence Pass, the high route between Twin Lakes and Aspen, closes seasonally for winter, so the drive that works in summer may not work in the snow.
Read note ->Cars and driving
Mosquito Pass is a rough, high four-wheel-drive road open only briefly each year
The Mosquito Pass road east of Leadville is a steep, rocky high-clearance four-wheel-drive route that is usually open for about six to eight weeks after the summer snowmelt.
Read note ->Local rules (1)
History and culture (10)
History and culture
Why Leadville sits where it does: silver, then much more
Leadville grew up around mining in California Gulch, and much of its historic core is recognized as a National Historic Landmark District.
Read note ->History and culture
The Tabor Opera House tells Leadville's silver-boom story in one building
The 1879 Tabor Opera House in Leadville was built by silver magnate Horace Tabor and is a contributing landmark within the Leadville National Historic Landmark District.
Read note ->Nearby counties
Other Mountains counties — rules, rates, and districts shift across county lines.