City · California
Monrovia, California
Monrovia, city, in Los Angeles County, California. Monrovia had 38,264 residents on July 1, 2025 by the Census Bureau's estimate, up 0.9% since 2020; the 2020 Census counted 37,931 and the ACS 2020-2024 5-year estimates put it at 37,571 (±63). GEOID 0648648.
Residents, July 2025 estimate
38,264
Census Bureau estimate (no margin published)
2020 Census count: 37,931 · ACS 2020-2024: 37,571 ±63
Median household income
$96,021
±$4,856 (90% margin)
California: $99,122
Median home value
$909,400
±$25,157 (90% margin)
California: $734,700
Median gross rent
$2,114
±$81 (90% margin)
California: $2,036
Where is Monrovia and what county is it in?
Monrovia is a city in Los Angeles County, California. It covers 13.6 square miles of land, 2,782 residents per square mile in 2020.
Monrovia is in the Los Angeles-Long Beach-Anaheim, CA metropolitan statistical area, which takes in 2 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Monrovia, and is it growing?
The Census Bureau estimates that 38,264 people lived in Monrovia on July 1, 2025, up 0.9% since 2020, while California shrank 0.5%. The 2020 Census counted 37,931 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 37,571 (±63).
| Measure | Monrovia | Los Angeles County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 37,571±63 | 9,808,667 | +755 |
| Households | 14,181±458 | 3,416,449 | +1,253 |
| Average household size | 2.63±0.08 | 2.81 | −0.20 |
| Housing units | 14,855±500 | 3,650,466 | +1,094 |
Monrovia's population since 2000
From 36,929 in 2000 to 38,264 in 2025: up 3.6%. The 2000, 2010 and 2020 figures are census counts, each for Monrovia as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Monrovia?
The median resident of Monrovia is 38.3 years old; 21.7% are under 18 and 14.7% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 45.2%, then non-Hispanic white residents at 28.1%. 26.3% of residents were born outside the United States.
| Measure | Monrovia | Los Angeles County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 38.3±1.2 | 38.2 | −2.1 |
| Under 18 years | 21.7%±1.9 pts | 20.6% | – |
| 65 years and over | 14.7%±1.3 pts | 15.2% | – |
| Male | 49.2%±1.5 pts | 49.5% | – |
| Hispanic or Latino (any race) | 45.2%±3.3 pts | 48.4% | no clear change |
| White alone, not Hispanic | 28.1%±2.8 pts | 24.7% | −6.4 pts |
| Black or African American alone, not Hispanic | 5.5%±1.6 pts | 7.4% | no clear change |
| Asian alone, not Hispanic | 15.6%±2.0 pts | 14.9% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.3%±0.3 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.4%±0.5 pts | 0.2% | – |
| Two or more races, not Hispanic | 4.3%±1.2 pts | 3.5% | – |
| Some other race alone, not Hispanic | 0.6%±0.4 pts | 0.6% | – |
| Born outside the United States | 26.3%±2.0 pts | 33.4% | no clear change |
| Speak a language other than English at home (age 5+) | 43.6%±2.8 pts | 55.1% | – |
| Civilian veterans (age 18+) | 3.0%±0.7 pts | 2.7% | – |
| With a disability | 9.3%±1.0 pts | 11.3% | – |
| No health insurance coverage | 4.9%±1.4 pts | 8.2% | −2.0 pts |
| High school graduate or higher (age 25+) | 88.8%±1.9 pts | 80.9% | – |
| Bachelor's degree or higher (age 25+) | 42.7%±2.5 pts | 36.0% | +5.3 pts |
| Graduate or professional degree (age 25+) | 16.7%±1.8 pts | 13.0% | – |
| Lived in the same house a year earlier | 90.5%±1.9 pts | 90.8% | – |
| Moved from another state in the past year | 0.4%±0.2 pts | 1.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Monrovia earn?
Half of Monrovia's 14,181 households earn less than $96,021 a year (±$4,856), against $90,112 in Los Angeles County and $99,122 in California. In 2015-2019 it was $94,900 in 2024 dollars; the margins of error cannot tell the two periods apart. 10.3% of residents live below the poverty line.
| Measure | Monrovia | Los Angeles County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $96,021±$4,856 | $90,112 | no clear change |
| Mean household income | $127,219±$7,980 | $128,770 | – |
| Per capita income | $48,568±$3,078 | $45,792 | no clear change |
| People below the poverty line | 10.3%±2.8 pts | 13.7% | no clear change |
| Children under 18 below the poverty line | 14.2%±8.2 pts | 17.6% | no clear change |
| Households receiving SNAP | 9.9%±1.7 pts | 14.4% | – |
| Households with a computer | 96.7%±1.1 pts | 96.7% | – |
| Households with a broadband subscription | 93.0%±1.7 pts | 93.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Monrovia?
Owners occupy 46.3% of Monrovia's occupied homes and renters 53.7%. The median owner-occupied home is valued at $909,400 by its owner (±$25,157). The median renter pays $2,114 a month including utilities, and 43.4% of renters pay 35% or more of their income on rent.
| Measure | Monrovia | Los Angeles County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $909,400±$25,157 | $834,200 | +$92,958 |
| Median gross rent | $2,114±$81 | $1,954 | +$157 |
| Renters paying 35% or more of income on rent | 43.4%±4.3 pts | 48.3% | no clear change |
| Median monthly owner costs, with a mortgage | $3,134±$216 | $3,160 | – |
| Owner-occupied homes | 46.3%±3.1 pts | 45.9% | no clear change |
| Renter-occupied homes | 53.7%±3.1 pts | 54.1% | – |
| Housing units | 14,855±500 | 3,650,466 | +1,094 |
| Homeowner vacancy rate | 0.4%±0.5 pts | 0.7% | – |
| Rental vacancy rate | 1.9%±1.2 pts | 4.0% | – |
| Single-family detached homes | 57.5%±2.6 pts | 47.3% | – |
| Mobile homes | 1.1%±0.5 pts | 1.6% | – |
| Built 2020 or later | 0.4%±0.4 pts | 0.9% | – |
| Built 2010 to 2019 | 4.9%±1.4 pts | 4.8% | – |
| Built 1939 or earlier | 16.7%±2.2 pts | 14.3% | – |
| Households with no vehicle | 4.7%±1.2 pts | 8.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Monrovia building?
Builders took permits for 63 new housing units in Monrovia in 2025 (63 in single-family houses), 1.6 per 1,000 residents against 2.6 across California.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Monrovia work and get to work?
67.6% of Monrovia's workers drive alone and 18.0% work from home. The average trip to work takes 30.1 minutes. The unemployment rate in 2020-2024 averaged 5.1%.
| Measure | Monrovia | Los Angeles County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 66.4%±2.5 pts | 64.8% | – |
| Unemployment rate | 5.1%±1.5 pts | 7.3% | no clear change |
| Drove alone to work | 67.6%±2.8 pts | 64.8% | – |
| Carpooled | 8.6%±2.1 pts | 9.3% | – |
| Public transportation | 2.4%±0.7 pts | 3.9% | – |
| Walked | 1.8%±0.8 pts | 2.4% | – |
| Worked from home | 18.0%±2.4 pts | 17.1% | +11.8 pts |
| Mean travel time to work | 30.1 min±1.4 | 30.4 min | −2.8 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Monrovia?
8 census tracts lie mostly in Monrovia, and 3 more reach into it (2020 census blocks). Their median household incomes run from $82,091 (Tract 4311) to $147,236 (Tract 4303.01).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 4311Los Angeles County | 7,322 | $82,091 |
| Tract 4309.02Los Angeles County | 5,034 | $103,021 |
| Tract 4303.02Los Angeles County | 4,950 | $103,512 |
| Tract 4310.03Los Angeles County | 4,613 | $89,099 |
| Tract 4303.01Los Angeles County | 4,426 | $147,236 |
| Tract 4309.01Los Angeles County | 4,209 | $85,560 |
| Tract 4310.02Los Angeles County | 3,146 | $88,700 |
| Tract 4310.04Los Angeles County | 3,138 | $84,833 |
| Tract 4312Los Angeles County | 6,523 | $93,750 |
| Tract 4313Los Angeles County | 2,565 | $97,083 |
| Tract 4314Los Angeles County | 3,647 | $107,222 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Monrovia) · Census block assignment files
How does Monrovia compare with other places in California?
By the Census Bureau's July 2025 estimates, Monrovia is the 1,093rd-most populous of the 19,476 U.S. incorporated places that have one and the 210th-most populous of 483 in California.
Monrovia ranks 493rd of 1,037 places in California with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 210th | 483 |
| Growth 2020-2025 (PEP) | 137th | 469 |
| Residents per square mile | 491st | 1,077 |
| Median household income | 493rd | 1,037 |
| Per capita income | 433rd | 1,073 |
| Median home value | 275th | 1,054 |
| Median gross rent | 360th | 987 |
| Poverty rate | 461st | 836 |
| Bachelor's degree or higher | 315th | 988 |
| Median age | 612th | 1,075 |
| Owner-occupied share | 943rd | 1,064 |
| Work from home | 350th | 822 |
| Travel time to work | 385th | 1,069 |
Monrovia's figures with every place in California (CSV)
Every place in California, sortable · Compare Monrovia with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Monrovia?
5 of the 57 figures for Monrovia on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Monrovia are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Monrovia.