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CITY · 2000 CENSUS

San Marcos

California · 54,977 residents · 24.571 sq mi
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The short version

San Marcos has roughly average household income, with a median household income of $45,908. Population has grown 41% since 1990. Median home value is $178,400.

At a glance
Wealthier
above the US median
US median: $42,589
Younger
median age 32.1
US median: 35.2
Less educated
20% hold a bachelor's degree
US average: 24%
More affordable
home values down 21%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

54,977
+41%since 1990
from 38,974 in 1990
1990 – 2025
2,237 / sq mi
+41%since 1990
from 1,586 / sq mi in 1990
US average: 242
32.1
+4%since 1990
from 30.8 in 1990
US average: 35.2
Population, 19902024
33K50K67K84K101K1990201020202024San Marcos
202495K
1990201020202024
Section 02

Income & economy

$45,908
+9%inflation adjusted, since 1990
from $31,961 in 1990
US average: $42,589
1990 – 2024
$18,657
+37%since 1990
from $13,590 in 1990
US average: $21,522
12.0%
+1.1 ptssince 1990
from 10.9% in 1990
US average: 12.4%
Section 03

Housing

$178,400
−21%inflation adjusted, since 1990
from $171,900 in 1990
US average: $120,530
1990 – 2024
$797
−8%inflation adjusted, since 1990
from $658 in 1990
US average: $602
66.0%
+3.7 ptssince 1990
from 62.3% in 1990
34.0% rent
3.9
−28%since 1990
from 5.4 in 1990
1990 – 2024
RELATED:See current rent listings in San Marcos on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic84.9%(33,088)
Black1.3%(524)
Hispanic / Latino26.8%(10,442)
Asian3.1%(1,201)
Diversity Score62.4%(24,321)
2000
White, non-Hispanic53.9%(29,617)
Black1.8%(1,001)
Hispanic / Latino36.9%(20,271)
Asian4.6%(2,503)
Diversity Score68.2%(37,495)
68
+9%since 1990
from 62 in 1990
1990 – 2024
Section 05

Education

20.0%
+5.2 ptssince 1990
from 14.8% in 1990
US average: 24.4%
High school or higher
75.1%
−1.0 ptssince 1990
from 76.1% in 1990
US average: 80.3%
5.8%
+2.0 ptssince 1990
from 3.8% in 1990
US average: 8.8%
Section 06

Commute & transportation

18.8 min
−9%since 1990
from 20.6 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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Frequently asked

How many people live in San Marcos, California?

San Marcos, California has about 54,977 residents according to the 2000 Census.

What is the median household income in San Marcos, California?

The typical household in San Marcos, California earns about $45,908 a year. Half of households make more than that, and half make less.

Is San Marcos, California expensive?

In San Marcos, California, the median home is worth about $178,400, and the typical rent is about $797 a month.

How educated are people in San Marcos, California?

About 20.0% of adults age 25 and over in San Marcos, California hold a bachelor's degree or higher.

What is the poverty rate in San Marcos, California?

About 12.0% of people in San Marcos, California live below the federal poverty line.

Has San Marcos, California grown since 1990?

Yes, San Marcos, California has grown since 1990. The population has added about 16,003 residents, a change of about 41 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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