Census tract · Carolina Municipio
Census Tract 503.21, Carolina Municipio, Puerto Rico
Census Tract 503.21, GEOID 72031050321, in Carolina Municipio, Puerto Rico, entirely within Carolina zona urbana. 3,779 residents in the ACS 2020-2024 5-year estimates (±641); the 2020 Census counted 3,998.
Residents, 2020-2024
3,779
±641 (90% margin)
2020 Census count: 3,998
Median household income
$24,227
±$6,545 (90% margin)
Carolina Municipio: $36,958
Median home value
$149,700
±$25,829 (90% margin)
Carolina Municipio: $157,600
Median gross rent
$727
±$86 (90% margin)
Carolina Municipio: $677
Where is Census Tract 503.21?
Census Tract 503.21 is one of 45 census tracts in Carolina Municipio, Puerto Rico. It covers 0.32 square miles of land, 12,416 residents per square mile in 2020. Its GEOID, 72031050321, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Carolina zona urbana | 100% |
5 census tracts border Census Tract 503.21: Tract 502.21 ($49,877), Tract 503.11 ($41,902), Tract 503.31 ($36,228), Tract 52.02 in San Juan Municipio ($38,737) and Tract 52.15 in San Juan Municipio ($20,573). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 503.21?
The 2020-2024 American Community Survey puts Census Tract 503.21's population at 3,779 (±641) in – households; the 2020 Census counted 3,998 residents and 2,025 housing units.
| Measure | Tract 503.21 | Carolina zona urbana |
|---|---|---|
| Total population | 3,779 ±641 | 138,633 |
| Housing units | 2,087 ±248 | 74,053 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 503.21?
The median resident of Census Tract 503.21 is 40.1 years old; 17.3% are under 18 and 22.5% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 98.6%, then non-Hispanic Black residents at 0.8%.
| Measure | Tract 503.21 | Carolina zona urbana |
|---|---|---|
| Median age | 40.1 ±7.6 | 45.3 |
| Under 18 years | 17.3% ±6.1 pts | 15.4% |
| 65 years and over | 22.5% ±5.2 pts | 24.7% |
| Hispanic or Latino (any race) | 98.6% ±1.4 pts | 98.5% |
| White alone, not Hispanic | 0.6% ±0.6 pts | 0.9% |
| Black or African American alone, not Hispanic | 0.8% ±1.3 pts | 0.1% |
| Asian alone, not Hispanic | 0.0% ±1.4 pts | 0.2% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.4 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.4 pts | 0.0% |
| Two or more races, not Hispanic | 0.0% ±1.4 pts | 0.2% |
| Some other race alone, not Hispanic | 0.0% ±1.4 pts | 0.1% |
| No health insurance coverage | 8.8% ±4.8 pts | 6.7% |
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 Census Tract 503.21 earn?
Half of the – households in Census Tract 503.21 earn less than $24,227 a year (±$6,545), against $36,958 across Carolina Municipio: 39th highest of the county's 43 tracts with a reliable estimate. 37.1% of residents live below the poverty line.
| Measure | Tract 503.21 | Carolina zona urbana |
|---|---|---|
| Median household income | $24,227 ±$6,545 | $37,726 |
| Mean household income | $36,015 ±$6,091 | $50,909 |
| Per capita income | $15,633 ±$2,675 | $22,436 |
| People below the poverty line | 37.1% ±9.7 pts | 27.4% |
| Children under 18 below the poverty line | 64.9% ±19.7 pts | 43.7% |
| Households receiving SNAP | 39.3% ±8.4 pts | 33.7% |
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 Census Tract 503.21?
Owners occupy 58.9% of Census Tract 503.21's occupied homes and renters 41.1%. The median owner-occupied home is valued at $149,700 by its owner (±$25,829). The median renter pays $727 a month including utilities, and 43.9% of renters pay 35% or more of their income on rent.
| Measure | Tract 503.21 | Carolina zona urbana |
|---|---|---|
| Median home value (owner-occupied) | $149,700 ±$25,829 | $158,400 |
| Median gross rent | $727 ±$86 | $677 |
| Renters paying 35% or more of income on rent | 43.9% ±16.4 pts | 41.1% |
| Median monthly owner costs, with a mortgage | $966 ±$104 | $1,102 |
| Owner-occupied homes | 58.9% ±8.4 pts | 67.3% |
| Renter-occupied homes | 41.1% ±8.4 pts | 32.7% |
| Housing units | 2,087 ±248 | 74,053 |
| Single-family detached homes | 50.4% ±6.8 pts | 45.9% |
| Mobile homes | 0.0% ±2.6 pts | 0.0% |
| Built 2020 or later | 0.0% ±2.6 pts | 0.0% |
| Built 2010 to 2019 | 0.0% ±2.6 pts | 1.6% |
| Built 1939 or earlier | 1.6% ±2.5 pts | 0.8% |
| Households with no vehicle | 6.6% ±5.0 pts | 9.2% |
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 do people in Census Tract 503.21 get to work?
74.6% of Census Tract 503.21's workers drive alone and 9.9% work from home. The average trip to work takes 27.9 minutes. The unemployment rate in 2020-2024 averaged 8.3%.
| Measure | Tract 503.21 | Carolina zona urbana |
|---|---|---|
| In the labor force (age 16+) | 55.6% ±5.8 pts | 53.9% |
| Unemployment rate | 8.3% ±5.1 pts | 10.4% |
| Drove alone to work | 74.6% ±8.9 pts | 79.1% |
| Carpooled | 9.6% ±6.8 pts | 6.2% |
| Public transportation | 3.6% ±5.6 pts | 0.9% |
| Walked | 0.0% ±3.4 pts | 1.1% |
| Worked from home | 9.9% ±5.8 pts | 11.6% |
| Mean travel time to work | 27.9 min ±4.6 | 29.9 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
How does Census Tract 503.21 compare with the other tracts in Carolina Municipio?
Among Carolina Municipio's tracts with a reliable estimate, Census Tract 503.21 ranks as shown below (1 = highest).
| Measure | In Carolina Municipio | In Carolina zona urbana |
|---|---|---|
| Population | 21st of 43 | 19th of 40 |
| Residents per square mile | 7th of 44 | 7th of 41 |
| Median household income | 39th of 43 | 36th of 40 |
| Per capita income | 37th of 43 | 35th of 40 |
| Median home value | 27th of 43 | 26th of 40 |
| Median gross rent | 15th of 41 | 13th of 39 |
| Poverty rate | 8th of 40 | 7th of 37 |
| Median age | 37th of 43 | 34th of 40 |
| Owner-occupied share | 37th of 43 | 34th of 40 |
The tracts next to it on Carolina Municipio's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 501.12 | 36th | $24,799±$15,125 · within the margin of this tract |
| Tract 511.02 | 37th | $24,750±$3,110 · within the margin of this tract |
| Tract 510.02 | 38th | $24,645±$15,108 · within the margin of this tract |
| Tract 503.21 | 39th | $24,227±$6,545 |
| Tract 508.41 | 40th | $23,214±$8,003 · within the margin of this tract |
| Tract 506 | 41st | $23,020±$6,263 · within the margin of this tract |
| Tract 502.22 | 42nd | $18,034±$6,129 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 503.21?
3 of the 16 figures for Census Tract 503.21 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.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). 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 · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections