Residential delivery area · Massachusetts
ZIP Code 01503: Berlin, MA
ZIP code 01503 uses the postal name Berlin, Massachusetts and lies entirely in Worcester County (Census 2020 ZIP-county file). About 3,400 people live there (Census Bureau, ACS 2020-2024). Median household income is $121,336 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Berlin · its only residential ZIP
- County
- Worcester County
- Metro area
- Worcester, MA
- House district
- MA-3 119th Congress
- State
- Massachusetts
- Time zone
- Eastern
- Land area
- 13.0 sq mi · 260 people per sq mi
Where is ZIP code 01503?
01503 centers on 42.385°, -71.634° and covers 13.0 square miles of land plus 0.2 of water. It borders 6 ZIP codes: 01510, 01740, 01532, 01749, 01505, 01752.
The map draws ZIP code areas only. For the streets inside 01503, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 01503 compare with the rest of Worcester County?
| Measure | 01503 | In Worcester County | In MA |
|---|---|---|---|
| People (ACS 2020-2024) | 3,378 | 65th of 87 | 383rd of 539 |
| Median household income | $121k | 22nd of 67 | 167th of 406 |
| Median home value | $617k | 7th of 77 | 173rd of 449 |
Its median household income is higher than in 91% of U.S. residential ZIP codes, and it is denser than 66% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 01503?
The 2020 Census counted 3,158 people in 01503; the ACS, which samples households over 2020-2024, estimates 3,378. Between the 2010 and 2020 censuses its population grew 10.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 3,378
- 2020 Census count
- 3,158+10.2% since 2010 (2,866)
- Households
- 1,447
- Median age
- 49.7
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 01503?
Of the 3,378 people the ACS estimates in 01503, 13.4% are under 18 and 30.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (87.1%).
- Under 1813.4%
- 18 to 6456.5%
- 65 and older30.1%
- White, not Hispanic87.1%
- Other or two or more6.7%
- Hispanic or Latino3.0%
- Asian, not Hispanic1.9%
- Black, not Hispanic1.4%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 01503 earn?
Median household income is $121,336 (ACS 2020-2024), the 22nd highest of the 67 ranked ZIP codes in Worcester County. It is not measurably different from 2015-2019 ($121,836 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $121,336
- Income per person
- $62,159
- Below the poverty line
- 5.0%
- Unemployed (of the labor force)
- 4.5%
- Adults 25+ with a bachelor's degree
- 48.3%
- Adjusted gross income per tax return, 2022
- $125,6711,980 returns; wages 68% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 01503?
FHFA's house price index for 01503, built from repeat sales and appraisals of the same homes, rose 95% from 2015 to 2025 and rose 64% from 2020 to 2025, and moved +8.1% in 2025.
- Median home value (owners' estimate)
- $616,600
- Median gross rent
- $2,420
- Homes owned by their occupants
- 77.3%
- Housing units
- 1,495
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 01503?
103 business establishments had a location in this ZIP code in 2023, 8 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction24
- Retail trade14
- Other services (except public administration)12
- Administrative and support and waste management and remediation services11
- Accommodation and food services9
- Real estate and rental and leasing8
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 01503?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 01510 | Clinton | 15,563 | $90k | 3.4 mi |
| 01740 | Bolton | 5,737 | $205k | 4.1 mi |
| 01532 | Northborough | 15,750 | $153k | 4.3 mi |
| 01749 | Hudson | 20,077 | $103k | 4.5 mi |
| 01505 | Boylston | 4,948 | $141k | 4.7 mi |
| 01752 | Marlborough | 41,647 | $92k | 5.1 mi |
| 01561 | South Lancaster | 0 | – | 5.0 mi (near) |
| 01775 | Stow | 7,165 | $186k | 6.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.