PlainZIP

San Juan, PR · standard

ZIP Code 00921

San Juan County, Puerto Rico - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

37,763
5,453/sq mi
$23,598
Median income
$148,600
Median home value
34.2%
Bachelor's or higher

The verdict

San Juan pairs one of the lowest household incomes in the country with below-median home values, in a suburban-density, mixed-tenure area.

1th 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 County, 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 Puerto Rico average), while per-capita income is $19,231. Poverty here runs at 46.9%, with unemployment measured at 13.9%. The typical home here is valued at $148,600 (7% above the state average); renters pay a median of $584 monthly, and 45.4% of units 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. A geography-based comparison follows: 10 ZIP codes within about 10 miles of 00921, plus 6 more within San Juan County, give a clearer read than the national average alone.

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

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 00921?

42.1

Median Age

45.2%

Male

54.8%

Female

13.0%

Foreign-Born

White 29.1%
African American 14.3%
Asian 0.0%
American Indian or Alaska Native 0.4%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 28.6%
Hispanic or Latino 99.2%

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

$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

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). This entry sits in this band. $40,000–$60,000: 7,092 US ZIPs (23%). Above this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Above this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

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?

High School Graduate or Higher 55.7%
Bachelor's Degree or Higher 34.2%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

17,643

Total Housing Units

14,422

Occupied Units

3,221

Vacant Units

2.24

Avg Household Size

Occupancy Type

Owner 45.4%
Renter 54.6%

$148,600

Median Home Value

+7% vs state

$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.

residents

What this shows Among its immediate neighbors, ZIP 00921 ranks #2 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 00921 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

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.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
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

More ZIP Codes in San Juan County

00926 standard
San Juan, PR
Pop: 108,862
00924 standard
San Juan, PR
Pop: 56,691
00915 standard
San Juan, PR
Pop: 32,820
00923 standard
San Juan, PR
Pop: 29,086
00917 standard
San Juan, PR
Pop: 21,053
00918 standard
San Juan, PR
Pop: 18,056

Related Areas

San Juan County San Juan, PR Puerto Rico

Frequently Asked Questions

What county 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.

Read our methodology to see how this data is sourced, computed, and verified.