Monrovia, CA Profile: Facts & Data


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Monrovia, California - Basic Facts

The City of Monrovia had a population of 37,957 as of July 1, 2018. Monrovia ranks in the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in California. See peer rankings below.

The primary coordinate point for Monrovia is located at latitude 34.1481 and longitude -117.999 in Los Angeles County. The formal boundaries for the City of Monrovia encompass a land area of 13.6 sq. miles and a water area of 0.11 sq. miles. Los Angeles County is in the Pacific time zone (GMT -8). The elevation is 571 feet.

The City of Monrovia (GNIS ID: 2411138) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

California is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Monrovia is located within Upper San Gabriel Valley CCD of Los Angeles County.

Jump to... (On This Page!)
  1. Monrovia 2018 Demographic Data
  2. Growth Rates for Monrovia (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. California Research Tools (Easy Tools & Current Data)
  3. California Data Comparison Tool - 2018 Demographics

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Monrovia, CA Data & Demographics (As of July 1, 2018)


Total Population 37,957
Population in Households 37,796
Population in Familes 31,028
Population in Group Qrtrs 161
Population Density2 2,790
Diversity Index3 82


Median Household Income $72,947
Average Household Income $99,248
Per Capita Income $37,132


Total Housing Units 14,844 (100%)
Owner Occupied HU 6,699 (45.1%)
Renter Occupied HU 7,468 (50.3%)
Vacant Housing Units 678 ( 4.6%)
Median Home Value $646,910
Average Home Value $715,646


Total Households 14,166
Average Household Size 2.67
Family Households 9,486
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2018 2018-2023
Population 0.45% 1.04%
Households 0.35% 0.86%
Families 0.44% 0.99%
Median Household Income   2.97%
Per Capita Income   2.97%

Monrovia, CA - Peer Comparisons by Rank and Percentile

The table below compares Monrovia to the other 1,516 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 227 85th
Population Density # 499 67th
Diversity Index # 308 80th
Median Household Income # 488 68th
Per Capita Income # 491 68th

Additional comparisons and rankings can be made with a VERY EASY TO USE California Census Data Comparison Tool.

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