Lone Tree is a city in Douglas County, Colorado, home to about 14,147 people across 9.8 square miles. Its ZIP code is 80124, and parts of 80134 are in Lone Tree too.
Homes sold for a median of $272 per square foot in the three months ending August 2026, a seller’s market.
Mostly Lone Tree; also Highlands Ranch and Acres Green
Mostly Parker; part is in Lone Tree
Each card is that ZIP code’s whole market, including any part outside Lone Tree. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Lone Tree’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Denver International Airport (DEN)25 miles away |
|---|---|
| Nearest city of 250,000+ | Aurora, CO15 miles away |
| Nearest city of 1 million+ | Phoenix, AZ574 miles away |
Straight-line distances from the center of Lone Tree; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Lone Tree had 14,253 residents in the 2020 census, up 192% since 2000.
It’s the 52nd largest of 472 towns in Colorado by population.
Douglas County grew from 3,120 residents in 1900 to 357,978 in 2020.
Douglas County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 87°F in summer, and winter lows average 19°F. About 15 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Denver Centennial Ap, CO weather station (3 miles away).
132,499 jobs at 10,563 businesses in Douglas County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1,019 doctors and other health care providers list an office in Lone Tree.
Nearest hospitals
Providers with an office here
| Primary care doctors | 108 |
|---|---|
| Specialist doctors | 329 |
| Dentists | 62 |
| Nurse practitioners and physician assistants | 260 |
| Mental health providers | 120 |
| Physical and occupational therapists | 98 |
| Optometrists | 20 |
| Chiropractors | 22 |
| Pharmacies | 12 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (23 nearby)
Grocery stores (4 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Museums
Theaters and performance venues (2 nearby)
Counts are within about 2 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Douglas County School District No. Re 1, State Charter School Institute. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Acres Green Elementary SchoolLittleton | Pre-K–6 | 341 | Public | 2.5 mi |
| Eagle Ridge Elementary SchoolLone Tree | Pre-K–6 | 571 | Public | 2.1 mi |
| Lone Tree ElementaryLone Tree | Pre-K–6 | 392 | Public | 0.9 mi |
| Skyview AcademyHighlands Ranch | Pre-K–12 | 1,358 | Charter | 3.5 mi |
| Wildcat Mountain Elementary SchoolLittleton | Pre-K–5 | 423 | Public | 2.3 mi |
| Ascent Classical Academy of Douglas CountyLone Tree | K–12 | 852 | Charter | 1.7 mi |
| Rocky Heights Middle SchoolLittleton | 6–8 | 1,129 | Public | 2.9 mi |
| Eagle AcademyLone Tree | 9–12 | 115 | Alternative Education | 1.7 mi |
| Rock Canyon High SchoolHighlands Ranch | 9–12 | 2,325 | Public | 2.8 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Creme De La Creme ColoradoLone Tree | Pre-K–TK | 7 | Nonsectarian | 2.8 mi |
| Montessori School at Lone TreeLone Tree | Pre-K–K | 5 | Nonsectarian | 2.2 mi |
| Primrose School of Lone TreeLone Tree | Pre-K–K | 18 | Nonsectarian | 1.8 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Parker, The Pinery, Stonegate, Sierra Ridge, Stepping Stone, Highlands Ranch, Meridian Village, Acres Green and Grand View Estates.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.