Silver Lake (Colorado), 2021
St. Mary's’s story
St. Mary's in pictures
Census counts: 251 in 2000, 333 in 2020. The archive holds 3 old photos and papers going back to 2021 and 3 maps from 1910 on.
Explore the history →
St. Mary'sCO
Some 68 people live in this town, in Colorado.
Photo: Jeffrey Beall · CC BY 4.0
Population
68
Census survey, 2020–24
Household income
$25K
median
Median age
64.1
years
Jobs based here
70
A commuter town
Is St. Mary's a good place to live?
54% of residents live below the poverty line in St. Mary's, against 8.4% in Colorado’s towns and 9.6% across U.S. towns. Of the 160 Colorado towns we compare, none has a higher age of the median resident than St. Mary's. 12% of the land in St. Mary's is conserved, against 6.9% in Colorado’s towns and 4.3% across U.S. towns. The biggest park or preserve is Arapaho National Forest, at 922 acres. St. Mary's has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
Small town
68 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Nearby towns
Getting set up
Moving to St. Mary's: who provides what
St. Mary's is unincorporated, so Clear Creek County and regional agencies provide most services.
PowerXcel Energy15.9¢/kWh · EIA 2025HIFLD · EIA
WaterSt Marys Glacier WSD4 health-based violations in 5 years · EPAEPA
Internet2 providers50% of addresses get 100/20 MbpsFCC
Trash & county servicesClear Creek CountyClear Creek County provides services here
Register to voteOnlineIn Colorado you can register online until 8 days before Election Day, in person up to and including Election Day, or by mail (postmarked 8 days before).vote.govWho runs elections hereClear Creek County Clerk and RecorderClear Creek County; contacts on the Handbook page.FVAP, Sep 2025
ZIP code8045280452 100%Census 2020
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.
The data
Ordered by what stands out in St. Mary's.
Natural hazards
Top of a very high hazard risk in St. Mary's: avalanches
Expected storm and flood damage is higher than in 91% of U.S. communities. 71% of St. Mary's’s expected losses from natural hazards come from avalanches, followed by inland flooding at 13%.
91risk score of 100
FEMA risk score
AvalanchesInland floodingWildfire
FEMA National Risk Index · OpenFEMA
Work & commute
St. Mary's has 0.3 jobs per working resident, so most workers leave town for work
Jobs based in St. Mary's grew to 70 in 2023, 44 more than in 2013. The top destinations are Denver (18%), Idaho Springs (8%) and Lakewood (5%). Half commute less than 31 miles.
0%work in town
Where working residents work
In St. Mary's0%
Denver18%
Idaho Springs8%
Lakewood5%
Winter Park4%
31 mi
median commute distance
70
jobs based in St. Mary's
A commuter town
jobs vs. working residents
Census LEHD 2023 · ACS
Climate
A typical July afternoon in St. Mary's is cooler than in most of Colorado or the rest of the country
St. Mary's has cold, snowy winters and cool summers. July afternoons reach 71°, January nights drop to 14° and about 214 inches of snow falls in a winter.
214″snow a winter
Typical low → high °F
Winter14–32°
Spring25–47°
Summer44–69°
Fall29–50°
Sep 19
typical first frost
Jun 6
typical last frost
+1.3°
vs. the 20th-century average
NOAA U.S. Climate Normals, 1991–2020
Outdoors
In St. Mary's, 12.1% of the land is conserved
Trails run 0.5 miles in 1 park or preserve. In St. Mary's, the trail network density is 0.4 miles per square mile.
12.1%conserved
12.1%
conserved · 111 of 922 acres
0.5 mi
of trails · 0.4 per sq mi
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Arapaho National Forest | 0.5 mi | 922 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
Health
How healthy St. Mary's is
23% of St. Mary's adults have obesity. CDC measures, 26 in all: St. Mary's beats Colorado on 8 and trails on 1.
| St. Mary's | Colorado towns | U.S. towns | |
|---|---|---|---|
| Sleep under 7 hours (CDC PLACES) | 27% | 30% | 36% |
| Obesity (CDC PLACES) | 23% | 26% | 35% |
| Frequent mental distress (CDC PLACES) | 13% | 16% | 17% |
| Get no exercise (CDC PLACES) | 13% | 16% | 25% |
26 measures vs. Colorado
8 better17 too close to call1 worse
| What stands out | St. Mary's | CO |
|---|---|---|
| Fewer older adults who have lost all their teeth | 4.6% | 9.2% |
| Fewer uninsured adults | 6.1% | 11.1% |
| More adults who have had cancer | 9.4% | 7.8% |
Boulder Community Health
24.6 mi away · emergency room
2 of 3
care shortages: primary care, mental health
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Housing
Homes in St. Mary's sell for about $507K
The share of households in St. Mary's who live in a home they own: 85%.
$507Kmedian sale price
2
homes sold in September
Census ACS, 2020–24 · Zillow Home Value Index · Redfin Data Center
Nearby attractions
All 81 attractions →Red Rocks Amphitheatre and 63 more within 40 miles
Museums, parks, gardens and other places to visit around St. Mary's. Close and well known come first.
Big draw26 mi TheatreRed Rocks Amphitheatre
Big draw34 mi Stadium & arenaEmpower Field at Mile High
34 mi Stadium & arenaBall Arena
24 mi National ParkRocky Mountain National Park4.2M visitors a year
16 mi MountainMount Blue Sky
35 mi Stadium & arenaCoors FieldSources: National Park Service · ski areas © OpenSkiMap / OpenStreetMap contributors · Wikidata · Wikipedia readership · photos via Wikimedia Commons
Photo credits
Red Rocks Amphitheatre: Unknown, CC BY-SA 3.0 · Empower Field at Mile High: Thelastcanadian, CC BY-SA 3.0 · Ball Arena: KM Newnham, CC BY-SA 2.5 · Rocky Mountain National Park: Charles M. Sauer -- Charlessauer, CC BY-SA 3.0 · Mount Blue Sky: Lookinhere, CC BY-SA 3.0 · Coors Field: Matt Kozlowski, CC BY-SA 3.0
Keep exploring
Everything we know about St. Mary's
16pages on St. Mary's
The big questions
Out and about
Day to day
After high school
Colleges nearby
None within 15 miles of St. Mary's; the nearest are
Colorado School of MinesUniversity or college · Public · Golden22.9 mi$21,914 in-state tuitionCommunity College of AuroraCommunity college · Public · Aurora45.4 mi$4,470 in-state tuition
About 13 of every 100 St. Mary's residents are enrolled in college, against 6 across Colorado.
A commuter town
100% of working residents leave St. Mary's for work
Where St. Mary's’s working residents go each day. Line width shows the share.
70jobs based in St. Mary's
0%of working residents work in town
31 mimedian commute distance
Census LEHD 2023
About St. Mary's
Unincorporated community in Clear Creek County, CO, USA
St. Mary's or Saint Mary's is a census-designated place (CDP) located in and governed by Clear Creek County, Colorado, United States. The CDP is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. The population of the St. Mary's CDP was 333 at the United States Census 2020. The St. Mary's Glacier Metropolitan District and the St. Mary's Glacier Water & Sanitation District provide services. The Idaho Springs post office (Zip Code 80452) serves the area.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
- Area
- 1.4 sq mi
- Elevation
- 10,079 ft
Questions about St. Mary's
Short answers, built from the data on this page.
Is St. Mary's, CO a good place to live?
St. Mary's has fewer than 1,000 residents, too few for fair grades; the figures below are still real. Some 68 people live in this town, in Colorado.