Residential delivery area · Massachusetts
ZIP Code 02171: Quincy, MA
ZIP code 02171 is in Quincy, Massachusetts, entirely in Norfolk County (Census 2020 ZIP-county file). About 20,000 people live there (Census Bureau, ACS 2020-2024), the 2nd most populous of Quincy's 3 residential ZIP codes. Median household income is $106,885 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Quincy · 3 residential ZIPs
- County
- Norfolk County
- Census places
- Quincy
- Metro area
- Boston-Cambridge-Newton, MA-NH
- House district
- MA-8 119th Congress
- State
- Massachusetts
- Time zone
- Eastern
- Land area
- 2.5 sq mi · 8,220 people per sq mi
- PO Box ZIPs
- 02269 also use the name Quincy
Where is ZIP code 02171?
02171 centers on 42.291°, -71.026° and covers 2.5 square miles of land plus 1.7 of water. It borders 3 ZIP codes: 02122, 02170, 02186.
The map draws ZIP code areas only. For the streets inside 02171, 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 02171 compare with the rest of Quincy?
| Measure | 02171 | In Quincy | In Norfolk County | In MA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 20,164 | 2nd of 3 | 15th of 41 | 125th of 539 |
| Median household income | $107k | 1st of 3 | 31st of 38 | 230th of 406 |
| Median home value | $663k | 2nd of 3 | 20th of 40 | 141st of 449 |
Its median household income is higher than in 85% of U.S. residential ZIP codes, and it is denser than 97% 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 02171?
The 2020 Census counted 19,539 people in 02171; the ACS, which samples households over 2020-2024, estimates 20,164. Between the 2010 and 2020 censuses its population grew 10.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 20,164
- 2020 Census count
- 19,539+10.3% since 2010 (17,711)
- Households
- 8,886
- Median age
- 40.8
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 02171?
Of the 20,164 people the ACS estimates in 02171, 12.7% are under 18 and 18.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (54.1%), then Asian (not Hispanic) (35.4%).
- Under 1812.7%
- 18 to 6469.0%
- 65 and older18.3%
- White, not Hispanic54.1%
- Asian, not Hispanic35.4%
- Hispanic or Latino4.2%
- Black, not Hispanic3.5%
- Other or two or more2.7%
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 02171 earn?
Median household income is $106,885 (ACS 2020-2024), the 31st highest of the 38 ranked ZIP codes in Norfolk County. It is not measurably different from 2015-2019 ($103,109 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $106,885±$16,693
- Income per person
- $65,500
- Below the poverty line
- 9.6%
- Unemployed (of the labor force)
- 6.1%
- Adults 25+ with a bachelor's degree
- 53.8%
- Adjusted gross income per tax return, 2022
- $100,00610,890 returns; wages 73% 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 02171?
FHFA's house price index for 02171, built from repeat sales and appraisals of the same homes, rose 91% from 2015 to 2025 and rose 42% from 2020 to 2025, and moved +7.0% in 2025.
- Median home value (owners' estimate)
- $662,900
- Median gross rent
- $2,388
- Homes owned by their occupants
- 52.1%
- Housing units
- 9,487
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 02171?
392 business establishments had a location in this ZIP code in 2023, 23 fewer than in 2018; the most are in accommodation and food services (ZIP Code Business Patterns).
- Accommodation and food services70
- Health care and social assistance47
- Professional, scientific, and technical services44
- Other services (except public administration)42
- Retail trade37
- Construction35
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 02171?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 02122 | Dorchester | 23,479 | $86k | 1.4 mi |
| 02170 | Quincy | 18,809 | $104k | 1.8 mi |
| 02186 | Milton | 28,735 | $188k | 4.5 mi |
| 02125 | Dorchester | 33,662 | $83k | 2.3 mi (near) |
| 02124 | Dorchester Center | 56,216 | $82k | 2.5 mi (near) |
| 02127 | South Boston | 36,769 | $164k | 3.1 mi (near) |
| 02121 | Dorchester | 29,040 | $43k | 3.3 mi (near) |
| 02126 | Mattapan | 26,583 | $66k | 3.4 mi (near) |
| 02169 | Quincy | 62,993 | $96k | 3.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.