PlainZIP

Saint James, NY · standard

ZIP Code 11780

Suffolk County, New York - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

15,524
519/sq mi
$144,577
Median income
$723,200
Median home value
52.1%
Bachelor's or higher

The verdict

Saint James pairs a top-decile household income with top-decile home values, in a low-density, homeowner-dominated area.

Top 4%
household income, US ZIPs
Top 6%
home value, US ZIPs
519
people per sq mi
87%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 11780 against every reporting US ZIP.

ZIP code 11780 is a mid-sized community (a standard USPS delivery area) in Saint James, Suffolk County, New York, home to 15,524 residents across 29.9 square miles, a density of 519 people per square mile, in the New York time zone.

ZIP 11780 skews affluent, with a median household income of $144,577 (56% above the New York average), while per-capita income is $75,677. Poverty here runs at 3.2%, with unemployment measured at 3.1%. On housing, the median home value is $723,200 (91% above the state average) with median rent at $2,316 per month, and 87.4% of occupied units are owner-occupied.

This is a highly-educated ZIP: 52.1% of adults hold a bachelor's degree or higher, the median age is 47.4, and the average commute is 31 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Suffolk County, so you can benchmark 11780 against its immediate geography rather than a 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 →

Top industries in ZIP 11780

Top 5 sectors by establishment count in Saint James, NY

Which industries have the most business establishments in ZIP 11780.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

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 11780, Saint James, NY · 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

15,524

Population

29.9

Area (sq mi)

519

People / sq mi

New York

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 11780?

47.4

Median Age

46.2%

Male

53.8%

Female

8.7%

Foreign-Born

White 82.2%
African American 0.4%
Asian 5.9%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 8.1%
Hispanic or Latino 11.8%

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?

$144,577

Median Household Income

+56% vs state

$75,677

Per Capita Income

3.2%

Poverty Rate

3.1%

Unemployment Rate

30.7 min

Mean Commute Time

How ZIP 11780 ranks nationally

Saint James, NY household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$144,577 Top 4% higher than 96% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Below this entry. $140,000–$160,000: 686 US ZIPs (2%). This entry sits in this band. $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 71.6%
Bachelor's Degree or Higher 52.1%

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

What does housing look like?

5,795

Total Housing Units

5,459

Occupied Units

336

Vacant Units

2.67

Avg Household Size

Occupancy Type

Owner 87.4%
Renter 12.6%

$723,200

Median Home Value

+91% vs state

$2,316

Median Rent

1974

Median Year Built

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

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+17.7%

YoY Change (2024)

263

HPI Index (2000 = 100)

+163%

Total Change Since 2000

Home values in ZIP 11780 have increased 17.7% over the past year (2024). Since 2000, this ZIP has seen +163% cumulative appreciation.

Year Annual Change HPI Index
2020 +2.0% 183
2021 +8.0% 198
2022 +11.0% 220
2023 +1.6% 223
2024 +17.7% 263

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 557 business establishments in ZIP 11780, employing approximately 6,761 people with a combined annual payroll of $379,962,000.

557

Businesses

6,761

Employees

$380.0M

Annual Payroll

15

Industry Sectors

Industry Establishments % of Total
Professional, scientific, and technical services 83 14.9%
Other services (except public administration) 81 14.5%
Construction 74 13.3%
Retail trade 63 11.3%
Health care and social assistance 52 9.3%
Administrative and support and waste management and remediation services 44 7.9%
Accommodation and food services 42 7.5%
Real estate and rental and leasing 29 5.2%
Finance and insurance 18 3.2%
Wholesale trade 17 3.0%
Educational services 15 2.7%
Manufacturing 14 2.5%
Transportation and warehousing 11 2.0%
Arts, entertainment, and recreation 10 1.8%
Information 4 0.7%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 11780 vs 11790 →

ZIP 11780 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 11780 ranks #7 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 11780 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 11780 ranks #5 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
11790 Stony Brook, NY 18,511 2.4 mi
11794 Stony Brook, NY 3,165 2.7 mi
11767 Nesconset, NY 14,530 3.6 mi
11787 Smithtown, NY 35,772 3.4 mi
11754 Kings Park, NY 18,958 4.1 mi
11755 Lake Grove, NY 12,387 3.6 mi
11749 Islandia, NY 3,345 5.9 mi
11733 East Setauket, NY 18,949 4.6 mi
11720 Centereach, NY 29,189 4.8 mi
11788 Hauppauge, NY 16,821 5.6 mi

More ZIP Codes in Suffolk County

11746 standard
Huntington Station, NY
Pop: 67,094
11706 standard
Bay Shore, NY
Pop: 62,543
11717 standard
Brentwood, NY
Pop: 60,745
11757 standard
Lindenhurst, NY
Pop: 45,700
11772 standard
Patchogue, NY
Pop: 44,837
11743 standard
Huntington, NY
Pop: 42,230

Related Areas

Suffolk County Saint James, NY New York

Frequently Asked Questions

What county is ZIP code 11780 in? ▼
ZIP code 11780 (Saint James) is located in Suffolk County, New York. Suffolk County contains multiple ZIP codes, see the full list at /counties/suffolk-ny.
What is the population of ZIP code 11780? ▼
ZIP code 11780 in Saint James, NY has a population of 15,524 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 11780? ▼
The median household income in ZIP 11780 is $144,577, which is 90% above the national average of $76,288.
What is the average home value in ZIP 11780? ▼
The median home value in ZIP 11780 is $723,200, which is 160% above the national average of $278,155.
What is the demographic makeup of ZIP 11780? ▼
The largest racial group in ZIP 11780 is White at 82.2%. Hispanic or Latino residents make up 11.8% of the population.
How many businesses are in ZIP code 11780? ▼
ZIP code 11780 has 557 business establishments employing approximately 6,761 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 11780? ▼
The top industries by establishment count in ZIP 11780 are: Professional, scientific, and technical services (83), Other services (except public administration) (81), Construction (74). There are 15 industry sectors represented in total.
How have home values changed in ZIP code 11780? ▼
According to the FHFA House Price Index, home values in ZIP 11780 increased by 17.7% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 163%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 11780? ▼
In ZIP code 11780, 71.6% of residents aged 25+ have a high school diploma or higher, and 52.1% 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 11780? ▼
The mean commute time for workers in ZIP code 11780 is 30.7 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 11780? ▼
In ZIP code 11780, approximately 87.4% of occupied housing units are owner-occupied and 12.6% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 11780? ▼
The poverty rate in ZIP code 11780 is 3.2% 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.