00921 ZIP Code — San Juan, PR

San Juan County, Puerto Rico

ZIP code 00921 is located in San Juan, Puerto Rico, within San Juan County. It covers approximately 3.07 square miles and serves a population of 33,555 residents. This is a standard ZIP code in the Atlantic (AT) — no DST timezone, served by area code 939.

About ZIP code 00921

The housing stock consists of a mix of housing types. Most homes were built in the 1950s, giving the area an established character. Median home value is $145,800. Owner-occupancy sits near the national average at 47%.

Median household income is $21,419. Poverty affects 47% of residents, above the national average. SNAP benefit usage at 42% of households reflects economic stress in the area. 36% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 22 minutes is near the national average.

Overall, ZIP code 00921 reflects a community defined by economic challenges above the national average, a significant Social Security-dependent population, and elevated reliance on food assistance.

33,555

population

3.07

sq mi land

Standard

ZIP type

Atlantic (AT) — no DST

timezone

00921 ZIP code map

Cities in ZIP code 00921

Below are the cities the US Postal Service accepts for ZIP code 00921. Using any city not on this list may result in mail delivery delays.

City	Status
San Juan	Acceptable
San Juan	Preferred
San Juan	Acceptable

Nearby ZIP codes

00927 San Juan (1.1 mi) 00920 San Juan (1.8 mi) 00966 Guaynabo (1.9 mi) 00968 Guaynabo (2.1 mi) 00918 San Juan (2.7 mi) 00925 San Juan (2.8 mi) 00917 San Juan (3.3 mi) 00965 Guaynabo (3.4 mi) 00926 San Juan (3.5 mi) 00909 San Juan (3.8 mi) 00923 San Juan (3.9 mi) 00912 San Juan (4.2 mi)

Demographics updated 05/2026

Population
Total population	33,555
Population density	10,930 / sq mi
State FIPS	72
County FIPS	127

Geography
Land area	3.07 sq mi
Water area	0.00 sq mi
Latitude	18.3905
Longitude	-66.0884
Timezone	Atlantic (AT) — no DST
Area code	939

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	82.2%	74.2%	80.8%
$50k – $100k	14.9%	16.5%	14.5%
$100k – $200k	2.1%	6.9%	3.8%
Over $200k	0.8%	2.4%	1.0%

Demographics & statistics

33,555

Population

10,930

People per sq mi

41.8

Median age

$21,419

Median household income

$15,360

Per capita income

$145,800

Median home value

$597

Median monthly rent

47.0%

Home ownership

47.0%

Poverty rate

18.0%

Unemployment

9,771

Housing units

0.0%

Bachelor's or higher

Age distribution

Male Female

569

Under 5

696

880

5–9

1,078

933

10–14

1,142

706

15–19

865

1,152

20–24

1,410

1,893

25–34

2,318

1,867

35–44

2,286

1,851

45–54

2,265

835

55–59

1,023

1,085

60–64

1,328

1,548

65–74

1,895

1,011

75–84

1,237

756

85+

926

← Male

Female →

Age summary

Group	Count	%
Under 18	6,162	18.4%
18 and over	27,393	81.6%
65 and over	7,373	22.0%
Median age	41.8 years

Race & ethnicity

White 29.3%

Hispanic or Latino 25.8%

Two or more races 19.6%

Other race 13.9%

Black or African American 11.3%

American Indian / Alaska Native 0.1%

Group	Count	%
White	13,228	29.3%
Hispanic or Latino	11,654	25.8%
Two or more races	8,839	19.6%
Other race	6,298	13.9%
Black or African American	5,116	11.3%
American Indian / Alaska Native	63	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	82.2%	74.2%	80.8%
$50k – $100k	14.9%	16.5%	14.5%
$100k – $200k	2.1%	6.9%	3.8%
Over $200k	0.8%	2.4%	1.0%

Under $10k 29.2%

$10k–$15k 7.7%

$15k–$25k 18.4%

$25k–$35k 10.6%

$35k–$50k 12.1%

$50k–$75k 11.3%

$75k–$100k 5.2%

$100k–$150k 3.5%

$150k–$200k 0.9%

$200k+ 1.1%

Range	% of households
Under $10k	29.2%
$10k–$15k	7.7%
$15k–$25k	18.4%
$25k–$35k	10.6%
$35k–$50k	12.1%
$50k–$75k	11.3%
$75k–$100k	5.2%
$100k–$150k	3.5%
$150k–$200k	0.9%
$200k+	1.1%
Median income	$21,419

Housing

Home values

Under $50k 1.4%

$50k–$100k 12.7%

$100k–$150k 39.3%

$150k–$200k 26.4%

$200k–$300k 12.5%

$300k–$500k 6.2%

$500k–$1M 1.3%

$1M+ 0.2%

Housing overview

Metric	Value
Median home value	$145,800
Median rent / month	$597
Owner occupied	47.0%
Renter occupied	53.0%
Vacant	18.6%
Single-family detached	46.0%
Large apartment buildings	14.7%
Mobile homes	0.3%
Median rooms	4.8
Avg household size (owned)	2.32

Year built

Era	%
2020 or later	0.0%
2010–2019	0.9%
2000–2009	2.9%
1990–1999	3.2%
1980–1989	6.4%
1970–1979	15.8%
1960–1969	24.9%
1950–1959	30.3%
1940–1949	13.5%
1939 or earlier	2.2%

Bedrooms

Size	% of units
No bedroom (studio)	4.3%
1 bedroom	10.5%
2 bedrooms	23.1%
3 bedrooms	48.7%
4 bedrooms	11.8%
5+ bedrooms	1.6%

Vehicles per household

Vehicles	% of households
No vehicle	20.9%
1 vehicle	46.9%
2 vehicles	23.7%
3 or more	8.4%

Heating fuel

Fuel type	%
Utility gas	0.1%
Electricity	12.7%
Propane / LP gas	1.0%
Solar	0.1%
No fuel used	86.1%

Households & families

Household type	Count	%
Married-couple family	0	0.0%
Cohabiting couple	0	0.0%
Male householder, no spouse	0	0.0%
Female householder, no spouse	0	0.0%
Households with children under 18	0	0.0%
Households with seniors (65+)	0	0.0%
Average household size	0.00

Marital status

Status	Male	Female
Never married	0.0%	0.0%
Married	0.0%	0.0%
Separated	0.0%	0.0%
Widowed	0.0%	0.0%
Divorced	0.0%	0.0%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.0%

HS graduate 0.0%

Some college, no degree 0.0%

Associate's degree 0.0%

Bachelor's degree 0.0%

Graduate / professional 0.0%

Metric	%
HS diploma or higher	0.0%
Bachelor's or higher	0.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	0	0.0%
High school	0	0.0%
College / grad school	0	0.0%

Employment

Industry of employment

Education & healthcare 22.9%

Professional & management 14.1%

Retail trade 13.0%

Other services 9.3%

Finance & real estate 8.1%

Construction 7.2%

Arts, food & hospitality 7.1%

Public administration 5.7%

Manufacturing 5.0%

Wholesale trade 3.7%

Transportation & utilities 2.6%

Information 1.1%

Agriculture & mining 0.4%

Occupation

Category	%
Management, business & arts	30.9%
Service	21.8%
Sales & office	30.4%
Natural resources & construction	9.5%
Production & transportation	7.4%

Employment type

Type	%
Private sector	69.1%
Government	15.7%
Self-employed	14.8%
Unpaid family workers	0.4%

Commute

Method	%
Drive alone	76.8%
Carpool	9.5%
Public transit	3.5%
Walk	3.5%
Work from home	3.7%
Other means	3.0%
Avg commute (minutes)	22.4

Poverty

All people 47.0%

Under 18 years 73.6%

18 and over 40.7%

Married-couple families 19.1%

Female-led households 65.1%

Income support

Source	% of households
Social Security	35.8%
Retirement income	17.7%
Supplemental Security	0.4%
Cash public assistance	3.6%
Food stamps / SNAP	42.3%

Health indicators

Condition	%
Obesity	0.0%
High blood pressure	0.0%
High cholesterol	0.0%
Diabetes	0.0%
Heart disease	0.0%
Stroke	0.0%
Asthma	0.0%
Arthritis	0.0%
Kidney disease	0.0%
Pulmonary disease	0.0%
Cancer	0.0%

Behavior / access	%
Smoking	0.0%
Binge drinking	0.0%
No physical activity	0.0%
Less than 7 hrs sleep	0.0%
Depression	0.0%
Fair or poor health	0.0%
Poor mental health	0.0%
Poor physical health	0.0%
No health insurance	0.0%
Visited doctor (checkup)	0.0%
Visited dentist	0.0%
Cholesterol screening	0.0%
Teeth loss	0.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	0	0.0%

Disability	%
Any disability	0.0%
Under 18	0.0%
18–64 years	0.0%
65 and over	0.0%

Health insurance coverage

Type	%
Private insurance	42.6%
Public insurance	60.0%
No insurance	8.4%
Uninsured under 19	7.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	0	0.0%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	0	0.0%
Born in same state	0	0.0%
Born in different state	0	0.0%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Technology access

Metric	% of households
Computer access	0.0%
Internet access	0.0%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 00921

What city is ZIP code 00921 in?

ZIP code 00921 is primarily assigned to San Juan, Puerto Rico.

What county is ZIP code 00921 in?

ZIP code 00921 falls within San Juan County, Puerto Rico.

What is the poverty rate in ZIP code 00921?

47% of residents in ZIP code 00921 live below the poverty line, above the national average.

Does ZIP code 00921 have a large retiree population?

36% of households in ZIP code 00921 receive Social Security income, suggesting a significant retiree or disability population.

What is the median household income in ZIP code 00921?

The median household income in ZIP code 00921 is $21,419, below the national median of ~$75,000.

What is the typical home value in ZIP code 00921?

The median home value in ZIP code 00921 is $145,800.

What timezone is ZIP code 00921 in?

ZIP code 00921 observes the AST timezone.