Residential delivery area · Massachusetts
ZIP Code 01606: Worcester, MA
ZIP code 01606 is in Worcester, Massachusetts, entirely in Worcester County (Census 2020 ZIP-county file). About 23,000 people live there (Census Bureau, ACS 2020-2024), the 5th most populous of Worcester's 9 residential ZIP codes. Median household income is $92,105 (Census Bureau, ACS 2020-2024). By Census place, 94% of its land lies in Worcester; 6% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Worcester · 9 residential ZIPs
- County
- Worcester County
- Census places
- Worcester
- Metro area
- Worcester, MA
- House district
- MA-2 119th Congress
- State
- Massachusetts
- Time zone
- Eastern
- Land area
- 6.0 sq mi · 3,815 people per sq mi
Where is ZIP code 01606?
01606 centers on 42.314°, -71.794° and covers 6.0 square miles of land plus 0.3 of water. It borders 5 ZIP codes: 01605, 01520, 01583, 01545, 01505.
The map draws ZIP code areas only. For the streets inside 01606, 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 01606 compare with the rest of Worcester?
| Measure | 01606 | In Worcester | In Worcester County | In MA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 22,844 | 5th of 9 | 9th of 87 | 111th of 539 |
| Median household income | $92k | 1st of 8 | 46th of 67 | 290th of 406 |
| Median home value | $371k | 5th of 8 | 57th of 77 | 370th of 449 |
Its median household income is higher than in 75% of U.S. residential ZIP codes, and it is denser than 91% 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 01606?
The 2020 Census counted 21,651 people in 01606; the ACS, which samples households over 2020-2024, estimates 22,844. Between the 2010 and 2020 censuses its population grew 13.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 22,844
- 2020 Census count
- 21,651+13.5% since 2010 (19,077)
- Households
- 9,192
- Median age
- 39.2
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 01606?
Of the 22,844 people the ACS estimates in 01606, 18.5% are under 18 and 15.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (58.4%), then Hispanic or Latino (15.6%).
- Under 1818.5%
- 18 to 6466.2%
- 65 and older15.3%
- White, not Hispanic58.4%
- Hispanic or Latino15.6%
- Black, not Hispanic13.0%
- Other or two or more6.9%
- Asian, not Hispanic6.2%
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 01606 earn?
Median household income is $92,105 (ACS 2020-2024), the 46th highest of the 67 ranked ZIP codes in Worcester County. It is not measurably different from 2015-2019 ($80,623 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $92,105
- Income per person
- $46,282
- Below the poverty line
- 9.2%
- Unemployed (of the labor force)
- 3.4%
- Adults 25+ with a bachelor's degree
- 44.5%
- Adjusted gross income per tax return, 2022
- $71,74811,250 returns; wages 79% 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 01606?
FHFA's house price index for 01606, built from repeat sales and appraisals of the same homes, rose 111% from 2015 to 2025 and rose 55% from 2020 to 2025, and moved +1.3% in 2025.
- Median home value (owners' estimate)
- $370,800
- Median gross rent
- $1,584
- Homes owned by their occupants
- 67.8%
- Housing units
- 9,563
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 01606?
456 business establishments had a location in this ZIP code in 2023, 18 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance72
- Retail trade62
- Other services (except public administration)52
- Professional, scientific, and technical services39
- Construction38
- Accommodation and food services36
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 01606?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 01605 | Worcester | 30,579 | $55k | 1.7 mi |
| 01520 | Holden | 16,912 | $148k | 3.4 mi |
| 01583 | West Boylston | 7,606 | $106k | 4.3 mi |
| 01545 | Shrewsbury | 38,876 | $139k | 4.6 mi |
| 01505 | Boylston | 4,948 | $141k | 4.9 mi |
| 01609 | Worcester | 22,047 | $68k | 2.7 mi (near) |
| 01608 | Worcester | 4,932 | $46k | 3.6 mi (near) |
| 01602 | Worcester | 27,092 | $92k | 4.2 mi (near) |
| 01604 | Worcester | 39,812 | $74k | 4.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.