Martinez, California Population 2024

35,599

Martinez is a city located in Contra Costa County California. Martinez has a 2024 population of 35,599. It is also the county seat of Contra Costa County.Martinez is currently declining at a rate of -1.18% annually and its population has decreased by -4.27% since the most recent census, which recorded a population of 37,187 in 2020.

The average household income in Martinez is $152,099 with a poverty rate of 5.34%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Martinez is 42.1 years, 39.6 years for males, and 43.8 years for females.

Martinez Demographics

According to the most recent ACS, the racial composition of Martinez was:

  • White: 65.97%
  • Two or more races: 16.29%
  • Asian: 10.46%
  • Other race: 3.41%
  • Black or African American: 3.03%
  • Native American: 0.84%
  • Native Hawaiian or Pacific Islander:
Land Area (mi²)
12.6 sq mi
Density (mi²)
2,818.40/sq mi
Growth Since 2020
-4.27% (-1,588)
The current population of Martinez, California is 35,599 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 37,187.

Martinez, California Population 2024

Population by Race

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Race
Population
Percentage (of total)
White24,47165.97%
Two or more races6,04116.29%
Asian3,88010.46%
Other race1,2663.41%
Black or African American1,1253.03%
Native American3100.84%
Native Hawaiian or Pacific Islander
showing: 7 rows

White

Two or more races

Asian

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

Martinez Population by Race

Martinez Population Pyramid 2024

Martinez Median Age

42.1

Total

39.6

Male

43.8

Female

Martinez Adults

There are 29,377 adults, (6,530 of whom are seniors) in Martinez.

Martinez Age Dependency

62.4

Age Dependency Ratio

28.6

Old Age Dependency Ratio

33.8

Child Dependency Ratio

Martinez Sex Ratio

Female18,54550%
Male18,54850%

Martinez Population by Age

Martinez Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All14,6152.57129
Married7,6413.1581.918.1
Non Family4,9771.2960.539.5
Female1,2303.0955.644.4
Male7672.9655.844.2
showing: 5 rows

3.04

Average Family Size

2.5

Average Household Size

71.0%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Martinez Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Martinez Educational Attainment by Sex (over 25)

Martinez Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among native american people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 61.92%.

Martinez Educational Attainment by Race

All

Male

Female

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$78,518

Average Earnings

$91,352

Average Male

$66,724

Average Female

Martinez Earnings by Educational Attainment

Martinez Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Martinez Language

82.7% of Martinez residents speak only English, while 17.3% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 8.22% of the population.

Martinez Language

Martinez Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White21,9601,3606.19%
Hispanic7,1102223.12%
Multiple5,9201612.72%
Asian3,8671554.01%
Black92713114.13%
Other1,259987.78%
showing: 6 rows

5.34%

Overall Poverty Rate

4.71%

Male Poverty Rate

5.96%

Female Poverty Rate

Poverty in Martinez

The race most likely to be in poverty in Martinez is Black, with 14.13% below the poverty level.

The race least likely to be in poverty in Martinez is Multiple, with 2.72% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.61%. Among those working part-time, it was 9.13%, and for those that did not work, the poverty rate was 12.58%.

Martinez Poverty

rate

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Rate
Poverty
Less Than 9th Grade20.38%
High School10.57%
Some College6.41%
Bachelors or Greater3.13%
showing: 4 rows

Martinez Poverty Rate by Education

rate

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Rate
Poverty
Male Unemployed28.49%
Female Unemployed19.14%
Female Employed3.42%
Male Employed1.46%
showing: 4 rows

Martinez Poverty Rate by Employment Status and Sex

Martinez Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Martinez Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

53.0%

Overall Marriage Rate

54.5%

Male Marriage Rate

51.6%

Female Marriage Rate

Martinez Married by Age and Sex

male

female

Martinez Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.

Martinez Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Martinez Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

2,139

Number of Veterans

1,953

Male Veterans

186

Female Veterans

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Martinez Veterans by War

count

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Martinez Veterans by Age

count

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Martinez Veterans by Race

Martinez Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

11.07%

Veteran Poverty Rate

31.91%

Veteran Disability Rate

Martinez Veterans by Education

LaborForceParticipation

67.9%

Labor Force Participation

64.6%

Employment Rate

4.9%

Unemployment Rate

Martinez Employment by Age

LaborForceParticipation

Martinez Employment by Race

LaborForceParticipation

Martinez Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

69.41%

Born in Martinez

88.02%

Native Born

11.98%

Foreign Born

3.29%

Non Citizen

8.68%

Naturalized

Place of Birth

88.02% of Martinez residents were born in the United States, with 69.41% having been born in California. 3.29% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Martinez Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202933,479-424-1.25%
202833,903-424-1.24%
202734,327-424-1.22%
202634,751-424-1.21%
202535,175-424-1.19%
202435,599-424-1.18%
202336,023-424-1.16%
202236,447-424-1.15%
202136,871-316-0.85%
202037,187-1,276-3.32%
201938,463-95-0.25%
201838,55880.02%
201738,5501450.38%
201638,4053000.79%
201538,1055281.41%
201437,5774561.23%
201337,1213380.92%
201236,7832770.76%
201136,5063560.98%
201036,1502840.79%
200035,8664,05812.76%
199031,8089,22640.86%
198022,5826,07636.81%
197016,5066,90271.87%
19609,6041,33616.16%
19508,26888712.02%
19407,38181212.36%
19306,5692,71170.27%
19203,8581,74382.41%
19102,11573553.26%
19001,380-220-13.75%
18901,6001,040185.71%
1870560
showing: 33 rows

Martinez Population by Year