Residential delivery area · Massachusetts
ZIP Code 01776: Sudbury, MA
ZIP code 01776 uses the postal name Sudbury, Massachusetts and lies entirely in Middlesex County (Census 2020 ZIP-county file). About 19,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $236,509 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Sudbury · its only residential ZIP
- County
- Middlesex County
- Neighborhood
- Musketamquid Village GeoNames
- Metro area
- Boston-Cambridge-Newton, MA-NH
- House district
- MA-5 119th Congress
- State
- Massachusetts
- Time zone
- Eastern
- Land area
- 24.4 sq mi · 790 people per sq mi
Where is ZIP code 01776?
01776 centers on 42.383°, -71.421° and covers 24.4 square miles of land plus 0.5 of water. It borders 7 ZIP codes: 01754, 01778, 01701, 01775, 01742, 01749, 01752.
The map draws ZIP code areas only. For the streets inside 01776, 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); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 01776 compare with the rest of Middlesex County?
| Measure | 01776 | In Middlesex County | In MA |
|---|---|---|---|
| People (ACS 2020-2024) | 19,270 | 38th of 83 | 131st of 539 |
| Median household income | $237k | 6th of 78 | 8th of 406 |
| Median home value | $989k | 23rd of 80 | 41st of 449 |
Its median household income is higher than in more than 99% of U.S. residential ZIP codes, and it is denser than 76% 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 01776?
The 2020 Census counted 18,934 people in 01776; the ACS, which samples households over 2020-2024, estimates 19,270. Between the 2010 and 2020 censuses its population grew 7.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 19,270
- 2020 Census count
- 18,934+7.2% since 2010 (17,659)
- Households
- 6,279
- Median age
- 42.3
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 01776?
Of the 19,270 people the ACS estimates in 01776, 28.5% are under 18 and 15.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (78.7%), then Asian (not Hispanic) (10.9%).
- Under 1828.5%
- 18 to 6455.9%
- 65 and older15.5%
- White, not Hispanic78.7%
- Asian, not Hispanic10.9%
- Other or two or more6.2%
- Hispanic or Latino3.7%
- Black, not Hispanic0.5%
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 01776 earn?
Median household income is $236,509 (ACS 2020-2024), the 6th highest of the 78 ranked ZIP codes in Middlesex County. It is not measurably different from 2015-2019 ($234,735 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $236,509
- Income per person
- $95,348
- Below the poverty line
- 2.9%
- Unemployed (of the labor force)
- 4.2%
- Adults 25+ with a bachelor's degree
- 83.3%
- Adjusted gross income per tax return, 2022
- $275,0088,950 returns; wages 67% 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 01776?
FHFA's house price index for 01776, built from repeat sales and appraisals of the same homes, rose 63% from 2015 to 2025 and rose 43% from 2020 to 2025, and moved +0.8% in 2025.
- Median home value (owners' estimate)
- $988,900
- Median gross rent
- $1,423
- Homes owned by their occupants
- 90.2%
- Housing units
- 6,479
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 01776?
536 business establishments had a location in this ZIP code in 2023, 1 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services104
- Health care and social assistance77
- Other services (except public administration)58
- Retail trade48
- Construction46
- Accommodation and food services42
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 01776?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 01754 | Maynard | 10,712 | $124k | 3.4 mi |
| 01778 | Wayland | 14,033 | $219k | 3.6 mi |
| 01701 | Framingham | 32,618 | $137k | 4.5 mi |
| 01775 | Stow | 7,165 | $186k | 5.7 mi |
| 01742 | Concord | 18,448 | $195k | 6.2 mi |
| 01749 | Hudson | 20,077 | $103k | 6.4 mi |
| 01752 | Marlborough | 41,647 | $92k | 6.8 mi |
| 02493 | Weston | 11,579 | $250k+ | 6.2 mi (near) |
| 01773 | Lincoln | 4,891 | $209k | 6.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.