Demographics of Isabela Municipio, Puerto Rico

Isabela Municipio, in Puerto Rico, a U.S. territory, had 42,938 people on July 1, 2025, by the Census Bureau’s estimate: +2 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Isabela Municipio, in four figures

42,938
Population: July 1, 2025, Vintage 2025 estimate.; < +0.1%
Change since July 2020: +2 people.; 45.1 ±0.1
Median age: ACS 2020–⁠2024.; $23,266 ±$2,479
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The change is the difference between one July estimate and the next.

Isabela Municipio, Puerto Rico's population grew < 0.1% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Isabela Municipio, Puerto Rico's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

Source: The Census Bureau

About this chart

The figures

Isabela Municipio, Puerto Rico's population grew < 0.1% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Isabela Municipio, Puerto Rico's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	42,936	100.0	100.0
2021	42,960	100.1	100.2
2022	42,694	99.4	100.7
2023	42,704	99.5	101.6
2024	42,961	100.1	102.5
2025	42,938	100.0	103.1

Population of Isabela Municipio, Puerto Rico on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	42,936	—
2021	42,960	+24
2022	42,694	−266
2023	42,704	+10
2024	42,961	+257
2025	42,938	−23

Age, 2020–2024

The median age is 45.1 ±0.1: for men 42.8 ±1.4 and for women 46.5 ±0.7. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Isabela Municipio by age, ACS 2020–2024
Age	People	Share	Puerto Rico	United States
Under 5	1,254 ±0	2.9% ±<0.1	3.1% ±<0.1	5.6% ±<0.1
5 to 17	5,355 ±390	12.5% ±0.9	13.0% ±0.1	16.3% ±<0.1
18 to 24	3,688 ±447	8.6% ±1.0	9.0% ±0.1	9.1% ±<0.1
25 to 44	11,065 ±564	25.8% ±1.3	25.2% ±0.1	26.9% ±<0.1
45 to 64	11,913 ±564	27.8% ±1.3	26.2% ±0.1	24.8% ±<0.1
65 and over	9,615 ±680	22.4% ±1.6	23.4% ±0.2	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $23,266 ±$2,479, and income per person $14,167 ±$1,250, in 2024 dollars. The median is $26,297 ±$261 in Puerto Rico and $80,734 ±$166 in the United States.

Households by income

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Households in Isabela Municipio by income, ACS 2020–2024
Household income	Households	Share	Puerto Rico	United States
Under $25,000	7,762 ±608	52.0% ±3.3	48.2% ±0.4	14.6% ±<0.1
$25,000 to $49,999	4,249 ±522	28.5% ±3.2	25.6% ±0.3	16.7% ±<0.1
$50,000 to $74,999	1,552 ±319	10.4% ±2.1	12.1% ±0.3	15.5% ±<0.1
$75,000 to $99,999	714 ±227	4.8% ±1.5	6.1% ±0.2	12.6% ±<0.1
$100,000 to $149,999	502 ±172	3.4% ±1.1	4.6% ±0.2	17.5% ±<0.1
$150,000 to $199,999	0 to 159	0% to 1.1%	1.6% ±0.1	9.6% ±<0.1
$200,000 or more	3 to 135	< 0.1% to 0.9%	1.7% ±0.1	13.4% ±0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Isabela Municipio by age, ACS 2020–2024
Age	Below poverty	Rate	Puerto Rico	United States
All ages	18,546 ±1,665	43.6% ±3.9	40.5% ±0.4	12.5% ±0.1
Under 18	3,336 ±522	50.9% ±5.4	54.9% ±0.6	16.1% ±0.1
18 to 59	9,534 ±1,189	40.9% ±4.2	37.0% ±0.4	11.6% ±0.1
60 and over	5,676 ±608	44.8% ±3.7	39.1% ±0.4	11.0% ±<0.1

Housing, 2020–2024

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Housing in Isabela Municipio, ACS 2020–2024
Measure	Isabela Municipio	Puerto Rico	United States
Housing units	21,832 ±525	1,634,357 ±4,364	143,775,355 ±10,234
Occupied	68.4% ±2.7	79.0% ±0.2	89.9% ±0.1
Vacant	31.6% ±2.5	21.0% ±0.2	10.1% ±0.1
Owner occupied	66.4% ±2.1	67.9% ±0.3	65.2% ±0.3
Renter occupied	33.6% ±2.5	32.1% ±0.3	34.8% ±0.1
Median home value	$136,200 ±$14,263	$131,500 ±$959	$332,700 ±$236
Median gross rent	$582 ±$34	$578 ±$6	$1,413 ±$2
Median year built	1983 ±2	1979 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Isabela Municipio by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Puerto Rico	United States
Hispanic or Latino	42,190 ±287	98.4% ±0.7	99.0% ±0.1	19.3% ±<0.1
White alone, not Hispanic	148 to 496	0.3% to 1.2%	0.6% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	1 to 147	< 0.1% to 0.3%	0.1% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 77	0% to 0.2%	0.1% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 33	0% to 0.1%	0% to < 0.1%	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 76	0% to 0.2%	< 0.1%	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 213	0% to 0.5%	0.1% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	0 to 336	0% to 0.8%	0.1% ±<0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

The Bureau counts a person born in Puerto Rico as born outside the United States, in Puerto Rico, and the table says so. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Isabela Municipio by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Puerto Rico	United States
Born in one of the 50 states or DC	3,432 ±502	8.0% ±1.2	5.2% ±0.1	26.9% ±<0.1
Born in Puerto Rico, an island area, or abroad to American parents	39,046 ±558	91.0% ±1.3	92.1% ±0.1	1.7% ±<0.1
Born abroad	412 ±203	1.0% ±0.5	2.7% ±0.1	14.1% ±<0.1
Naturalized citizens	107 to 367	0.2% to 0.9%	1.4% ±0.1	7.4% ±<0.1
Not citizens	0 to 353	0% to 0.8%	1.3% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Isabela Municipio among the municipios of Puerto Rico

18th of 78 by population, July 2025. Every one is listed on the Puerto Rico page.

Municipios of Puerto Rico near Isabela Municipio in population, July 2025
Municipio	July 2025	Change since 2020
Aguadilla Municipio	53,219	−3.3%
Humacao Municipio	49,249	−3.1%
Cabo Rojo Municipio	46,580	−1.1%
Juana Díaz Municipio	45,853	−1.4%
Río Grande Municipio	44,799	−4.7%
Isabela Municipio	42,938	< +0.1%
Canóvanas Municipio	41,302	−2.4%
Cayey Municipio	40,027	−3.7%
Gurabo Municipio	39,780	−1.9%
Cidra Municipio	39,669	−0.8%
San Sebastián Municipio	39,019	−0.8%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Compiled automatically from Census Bureau population estimates — counties and Puerto Rico municipios, with components of change and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026