Port Costa vs Shell Ridge

A side-by-side comparison of Port Costa and Shell Ridge: population, income, housing, and more.

Port Costa and Shell Ridge are places in California. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Shell Ridge has the higher population (998 vs 194 in Port Costa). Shell Ridge has the higher median home value ($2,000,001 vs $586,500 in Port Costa). Since 2019, Port Costa's population has grown faster (+7.8% vs -25.6%).

Population, income & housing

	Port Costa	Shell Ridge
Population	194	998
Median age	68.5 yrs	42.9 yrs
Median household income	—	$250,001
Median home value	$586,500	$2,000,001
Housing units	144	347
Homeownership rate	35.4%	92.8%
Bachelor's degree or higher	19.1%	81.9%
Unemployment rate	12.9%	3.3%

Trends (ACS 5-year, 2019–2023)

	Port Costa	Shell Ridge
Population	180 → 194 (+7.8%)	1,342 → 998 (-25.6%)
Median household income	—	$214,740 → $250,001 (+16.4%)
Median home value	$586,300 → $586,500 (+0.0%)	$978,200 → $2,000,001 (+104.5%)

Port Costa

Population

180194

Median home value

$586,300$586,500

Shell Ridge

Population

1,342998

Median household income

$214,740$250,001

Median home value

$978,200$2,000,001

Age & race/ethnicity

Age distribution (share)

	Port Costa	Shell Ridge
Under 5	0.0%	4.0%
5 to 17	0.0%	19.2%
18 to 24	0.0%	1.3%
25 to 34	0.0%	7.0%
35 to 44	9.8%	21.0%
45 to 54	0.0%	21.7%
55 to 64	6.2%	7.9%
65 to 74	45.9%	14.8%
75 and over	38.1%	2.9%

Race & ethnicity (share)

	Port Costa	Shell Ridge
White (non-Hispanic)	84.0%	87.8%
Black or African American	0.0%	0.0%
American Indian & Alaska Native	0.0%	0.0%
Asian	0.0%	1.1%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.0%
Two or more races	0.0%	1.6%
Hispanic or Latino	16.0%	9.5%

Educational attainment (age 25+)

Share of adults 25+

	Port Costa	Shell Ridge
No high school diploma	0.0%	0.0%
High school graduate	22.2%	3.9%
Some college or associate's	58.8%	14.2%
Bachelor's degree	0.0%	35.3%
Graduate or professional degree	19.1%	46.6%

Commute to work

How workers get to work (share)

	Port Costa	Shell Ridge
Drove alone	56.5%	71.6%
Carpooled	0.0%	2.3%
Public transit	0.0%	0.0%
Walked	15.9%	0.0%
Bicycle	27.5%	0.0%
Worked from home	0.0%	26.1%
Other means	0.0%	0.0%

Housing

Units in structure (share)

	Port Costa	Shell Ridge
1-unit, detached	100.0%	89.9%
1-unit, attached	0.0%	10.1%
2 to 4 units	0.0%	0.0%
5 to 19 units	0.0%	0.0%
20 or more units	0.0%	0.0%
Mobile home & other	0.0%	0.0%

Poverty & households

	Port Costa	Shell Ridge
Poverty rate	0.0%	1.1%
Average household size	1.35	2.88
Mean commute (minutes)	—	42
Median year structure built	1938	1961