Blue Valley vs St. Mary's

A side-by-side comparison of Blue Valley and St. Mary's: population, income, housing, and more.

Blue Valley and St. Mary's are places in Colorado. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Blue Valley has the higher population (169 vs 130 in St. Mary's). St. Mary's has the higher median household income ($78,854 vs $78,387 in Blue Valley). Since 2019, Blue Valley's population has grown faster (-35.7% vs -79.0%).

Population, income & housing

	Blue Valley	St. Mary's
Population	169	130
Median age	63.9 yrs	31.8 yrs
Median household income	$78,387	$78,854
Median home value	—	$406,900
Housing units	95	231
Homeownership rate	100.0%	78.3%
Bachelor's degree or higher	57.2%	36.0%
Unemployment rate	0.0%	0.0%

Trends (ACS 5-year, 2019–2023)

	Blue Valley	St. Mary's
Population	263 → 169 (-35.7%)	620 → 130 (-79.0%)
Median household income	$106,765 → $78,387 (-26.6%)	$78,143 → $78,854 (+0.9%)
Median home value	—	$235,500 → $406,900 (+72.8%)

Blue Valley

Population

263169

Median household income

$106,765$78,387

St. Mary's

Population

620130

Median household income

$78,143$78,854

Median home value

$235,500$406,900

Age & race/ethnicity

Age distribution (share)

	Blue Valley	St. Mary's
Under 5	0.0%	0.0%
5 to 17	10.1%	31.5%
18 to 24	0.0%	0.0%
25 to 34	0.0%	20.8%
35 to 44	9.5%	32.3%
45 to 54	6.5%	0.0%
55 to 64	26.0%	5.4%
65 to 74	47.9%	10.0%
75 and over	0.0%	0.0%

Race & ethnicity (share)

	Blue Valley	St. Mary's
White (non-Hispanic)	100.0%	100.0%
Black or African American	0.0%	0.0%
American Indian & Alaska Native	0.0%	0.0%
Asian	0.0%	0.0%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.0%
Two or more races	0.0%	0.0%
Hispanic or Latino	0.0%	0.0%

Educational attainment (age 25+)

Share of adults 25+

	Blue Valley	St. Mary's
No high school diploma	0.0%	0.0%
High school graduate	0.0%	0.0%
Some college or associate's	42.8%	64.0%
Bachelor's degree	36.8%	28.1%
Graduate or professional degree	20.4%	7.9%

Commute to work

How workers get to work (share)

	Blue Valley	St. Mary's
Drove alone	72.5%	61.8%
Carpooled	27.5%	28.9%
Public transit	0.0%	0.0%
Walked	0.0%	0.0%
Bicycle	0.0%	0.0%
Worked from home	0.0%	9.2%
Other means	0.0%	0.0%

Housing

Units in structure (share)

	Blue Valley	St. Mary's
1-unit, detached	100.0%	93.5%
1-unit, attached	0.0%	0.0%
2 to 4 units	0.0%	0.0%
5 to 19 units	0.0%	6.5%
20 or more units	0.0%	0.0%
Mobile home & other	0.0%	0.0%

Poverty & households

	Blue Valley	St. Mary's
Poverty rate	0.0%	0.0%
Average household size	1.88	1.88
Median year structure built	1992	1980