San Juan, PR · standard
ZIP Code 00921
San Juan Municipio, Puerto Rico - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 37,763
- 5,453/sq mi High-density area
- $23,598
- Median income Below-median income area
- $148,600
- Median home value Below-median home value
- 34.2%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
San Juan pairs one of the lowest household incomes in the country with below-median home values, in a suburban-density, mixed-tenure area.
- 1st pct
- household income, US ZIPs
- 25th pct
- home value, US ZIPs
- 5,453
- people per sq mi
- 45%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 00921 against every reporting US ZIP.
ZIP code 00921 is a densely settled ZIP (a standard USPS delivery area) in San Juan, San Juan Municipio, Puerto Rico, with 37,763 residents across 6.9 square miles, a density of 5,453 people per square mile, in the Puerto Rico time zone.
ZIP 00921 sits on the lower end of the income spectrum: median household income is $23,598 (10% below the average Puerto Rico ZIP), while per-capita income is $19,231. Economic pressure is pronounced: 46.9% of residents are below the poverty line and unemployment is 13.9%. Median home value is $148,600 (7% above the average Puerto Rico ZIP) and median rent is $584; 45.4% of occupied homes are owner-occupied.
A solid share of residents have a four-year degree: 34.2% of adults hold a bachelor's degree or higher, the median age is 42.1, and the average commute is 24 minutes. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in San Juan Municipio, so 00921 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 00921, San Juan, 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
37,763
Population
6.9
Area (sq mi)
5,453
People / sq mi
Puerto Rico
Time Zone
standard
ZIP Type
Who lives in ZIP 00921?
42.1
Median Age
45.2%
Male
54.8%
Female
13.0%
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?
$23,598
Median Household Income
-10% vs state ZIP avg
$19,231
Per Capita Income
46.9%
Poverty Rate
13.9%
Unemployment Rate
23.8 min
Mean Commute Time
How ZIP 00921 ranks nationally
San Juan, PR household income vs. every US ZIP code
Median household income, the full national distribution, with this ZIP marked
$23,598 1st percentile higher than 1% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US 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
17,643housing units
17,643
Total Housing Units
14,422
Occupied Units
3,221
Vacant Units
2.24
Avg Household Size
Occupancy Type
$148,600
Median Home Value
+7% vs state ZIP avg
$584
Median Rent
1961
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Nearby ZIP Codes
Want a side-by-side? Compare 00921 vs 00936 →
ZIP 00921 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 00969
Guaynabo (00969)
42,219 residents
- 00921
San Juan (00921)
37,763 residents
- 00923
San Juan (00923)
29,086 residents
- 00918
San Juan (00918)
18,056 residents
- 00920
San Juan (00920)
17,893 residents
- 00966 16,676
Guaynabo (00966)
16,676 residents
- 00927 14,936
San Juan (00927)
14,936 residents
- 00925 8,696
San Juan (00925)
8,696 residents
- 00968 3,478
Guaynabo (00968)
3,478 residents
What this shows Among its immediate neighbors, ZIP 00921 ranks #2 by population - useful context the national average alone can't give.
ZIP 00921 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 00969
Guaynabo (00969)
$61,101 median income
- 00966
Guaynabo (00966)
$60,203 median income
- 00968
Guaynabo (00968)
$58,869 median income
- 00918
San Juan (00918)
$39,287 median income
- 00927
San Juan (00927)
$38,728 median income
- 00920
San Juan (00920)
$30,259 median income
- 00921 $23,598
San Juan (00921)
$23,598 median income
- 00923 $20,349
San Juan (00923)
$20,349 median income
- 00925 $17,404
San Juan (00925)
$17,404 median income
What this shows By household income, ZIP 00921 ranks #7 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 00936 | San Juan, PR | 681 | 1.0 mi |
| 00927 | San Juan, PR | 14,936 | 1.1 mi |
| 00920 | San Juan, PR | 17,893 | 1.6 mi |
| 00968 | Guaynabo, PR | 3,478 | 1.3 mi |
| 00966 | Guaynabo, PR | 16,676 | 2.0 mi |
| 00969 | Guaynabo, PR | 42,219 | 2.2 mi |
| 00925 | San Juan, PR | 8,696 | 2.6 mi |
| 00918 | San Juan, PR | 18,056 | 2.5 mi |
| 00934 | Fort Buchanan, PR | 288 | 2.7 mi |
| 00923 | San Juan, PR | 29,086 | 3.5 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 00921, 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 (37,763 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in San Juan Municipio
Related Areas
Frequently Asked Questions
What municipio is ZIP code 00921 in?
ZIP code 00921 (San Juan) is located in San Juan Municipio, Puerto Rico. San Juan Municipio contains multiple ZIP codes, see the full list at /counties/san-juan-pr.
What is the population of ZIP code 00921?
ZIP code 00921 in San Juan, PR has a population of 37,763 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 00921?
The median household income in ZIP 00921 is $23,598, which is 69% below the national average of $76,288.
What is the average home value in ZIP 00921?
The median home value in ZIP 00921 is $148,600, which is 47% below the national average of $278,155.
What is the demographic makeup of ZIP 00921?
The largest racial group in ZIP 00921 is White at 29.1%. Hispanic or Latino residents make up 99.2% of the population.
What is the education level in ZIP code 00921?
In ZIP code 00921, 55.7% of residents aged 25+ have a high school diploma or higher, and 34.2% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 00921?
The mean commute time for workers in ZIP code 00921 is 23.8 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 00921?
In ZIP code 00921, approximately 45.4% of occupied housing units are owner-occupied and 54.6% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 00921?
The poverty rate in ZIP code 00921 is 46.9% 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 00921's numbers, next.
- See how ZIP 00921 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where San Juan, 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.