This data is based on ZIP code 11777, which covers Belle Terre and Port Jefferson.
The U.S. Census reports business data by ZIP code, not city boundaries. All numbers reflect the combined ZIP code 11777 area shared across these towns.
Showing latest year snapshot. Full economic history and trends available with a paid plan. See products & pricing →
Belle Terre ZIP Area Economy · 2023
Wages -1% vs. avg. Suffolk Co. town
Belle Terre's ZIP area supports 7,308 jobs across 454 businesses, with workers earning an average of $70K per year, 1% below the Suffolk County average. The economy is well-diversified (0.86 index), led by healthcare and professional services. 87.9% of businesses have fewer than 20 employees, and each business employs an average of 16.1 people. Jobs grew 3.9% from the prior year while business count grew 2.9%.
Where Businesses Clusteri
Larger blocks have more businesses.
Local Specialization vs. Suffolk Avg.i
Industries sorted by relative concentration in this ZIP area.
Business Size Distributioni
454 businesses by employee count. 87.9% are small businesses (under 20 employees).
Small (10-19)
Micro (<5)
Small (5-9)
Medium (20-49)
Medium (50-99)
Economic Densityi
2.00+
jobs per resident
Capped: ZIP includes employers outside city limits
16.1
employees per business
County avg: 11.1+46%
$694K
payroll per resident
$1.1M
payroll per business
Belle Terre ZIP Area vs. Avg. Suffolk Co. Towni
All Industries in ZIP Areai
| Sector | Belle Terre ZIP | Avg. Suffolk Co. | Spec. |
|---|---|---|---|
| Healthcare | 92 | 114 | 1.7x |
| Professional Services | 77 | 119 | 1.4x |
| Food & Accommodation | 52 | 85 | 1.3x |
| Construction | 38 | 131 | 0.6x |
| Other Services | 36 | 98 | 0.8x |
| Retail Trade | 30 | 116 | 0.5x |
| Admin Services | 29 | 69 | 0.9x |
| Finance & Insurance | 27 | 45 | 1.3x |
| Real Estate | 22 | 43 | 1.1x |
| Arts & Entertainment | 12 | 23 | 1.1x |
| Wholesale Trade | 11 | 44 | 0.5x |
| Transportation | 9 | 20 | 1.0x |
| Information | 6 | 12 | 1.1x |
| Education | 4 | 14 | 0.6x |
| Utilities | 3 | 0 | — |
| Manufacturing | 3 | 24 | 0.3x |