Castaner, PR · standard
ZIP Code 00631
Lares Municipio, Puerto Rico - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,852
- 178/sq mi High-density area
- $19,278
- Median income Below-median income area
- $99,800
- Median home value Below-median home value
- 32.1%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Castaner pairs one of the lowest household incomes in the country with among the most affordable home values nationally, in a rural, homeowner-dominated area.
- Lowest
- household income, US ZIPs
- 10th pct
- home value, US ZIPs
- 178
- people per sq mi
- 65%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 00631 against every reporting US ZIP.
ZIP code 00631 covers 10.4 square miles in Castaner, Lares Municipio, Puerto Rico (a standard USPS delivery area), with a modest 1,852 residents on file, a density of 178 people per square mile, in the Puerto Rico time zone.
ZIP 00631 sits on the lower end of the income spectrum: median household income is $19,278 (26% below the average Puerto Rico ZIP), while per-capita income is $9,431. Economic pressure is pronounced: 54.5% of residents are below the poverty line and unemployment is 21.7%. Home values sit below the statewide ZIP benchmark: the median is $99,800 (28% below the average Puerto Rico ZIP), and median rent is $336; owner occupancy is 65.1%.
A solid share of residents have a four-year degree: 32.1% of adults hold a bachelor's degree or higher, the median age is 48, and the average commute is -. The page also surfaces 8 ZIP codes within roughly 10 miles and 1 more in Lares Municipio, so 00631 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 00631, Castaner, PR · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
1,852
Population
10.4
Area (sq mi)
178
People / sq mi
Puerto Rico
Time Zone
standard
ZIP Type
Who lives in ZIP 00631?
48.0
Median Age
49.1%
Male
50.9%
Female
0.6%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$19,278
Median Household Income
-26% vs state ZIP avg
$9,431
Per Capita Income
54.5%
Poverty Rate
21.7%
Unemployment Rate
How ZIP 00631 ranks among Puerto Rico ZIPs
Castaner, PR household income vs. every Puerto Rico ZIP code
Median household income among 125 reporting Puerto Rico ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$19,278 14th percentile higher than 14% of 125 Puerto Rico ZIPs
Each bar is a $20K-wide band; taller bars hold more Puerto Rico ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
604housing units
604
Total Housing Units
450
Occupied Units
154
Vacant Units
2.84
Avg Household Size
Occupancy Type
$99,800
Median Home Value
-28% vs state ZIP avg
$336
Median Rent
1977
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Nearby ZIP Codes
Want a side-by-side? Compare 00631 vs 00601 →
ZIP 00631 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 00698
Yauco (00698)
41,782 residents
- 00641
Utuado (00641)
31,191 residents
- 00669
Lares (00669)
29,744 residents
- 00624
Penuelas (00624)
26,241 residents
- 00637
Sabana Grande (00637)
25,287 residents
- 00656
Guayanilla (00656)
21,481 residents
- 00601
Adjuntas (00601)
18,570 residents
- 00606 6,615
Maricao (00606)
6,615 residents
- 00631 1,852
Castaner (00631)
1,852 residents
What this shows Among its immediate neighbors, ZIP 00631 ranks #9 by population - useful context the national average alone can't give.
ZIP 00631 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 00698
Yauco (00698)
$24,310 median income
- 00656
Guayanilla (00656)
$24,065 median income
- 00624
Penuelas (00624)
$22,979 median income
- 00637
Sabana Grande (00637)
$21,987 median income
- 00641
Utuado (00641)
$21,102 median income
- 00606
Maricao (00606)
$20,992 median income
- 00601
Adjuntas (00601)
$19,454 median income
- 00631
Castaner (00631)
$19,278 median income
- 00669
Lares (00669)
$18,778 median income
What this shows By household income, ZIP 00631 ranks #8 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 00631, both outside PR so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (1,852 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Lares Municipio
Related Areas
Frequently Asked Questions
What municipio is ZIP code 00631 in?
ZIP code 00631 (Castaner) is located in Lares Municipio, Puerto Rico. Lares Municipio contains multiple ZIP codes, see the full list at /counties/lares-pr.
What is the population of ZIP code 00631?
ZIP code 00631 in Castaner, PR has a population of 1,852 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 00631?
The median household income in ZIP 00631 is $19,278, which is 75% below the national average of $76,288.
What is the average home value in ZIP 00631?
The median home value in ZIP 00631 is $99,800, which is 64% below the national average of $278,155.
What is the demographic makeup of ZIP 00631?
The largest racial group in ZIP 00631 is White at 93.4%. Hispanic or Latino residents make up 100.0% of the population.
What is the education level in ZIP code 00631?
In ZIP code 00631, 54.8% of residents aged 25+ have a high school diploma or higher, and 32.1% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 00631?
In ZIP code 00631, approximately 65.1% of occupied housing units are owner-occupied and 34.9% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 00631?
The poverty rate in ZIP code 00631 is 54.5% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 00631's numbers, next.
- See how ZIP 00631 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Castaner, PR ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.