Residential delivery area · Connecticut
ZIP Code 06890: Southport, CT
ZIP code 06890 uses the postal name Southport, Connecticut and lies entirely in Fairfield County (Census 2020 ZIP-county file). About 4,700 people live there (Census Bureau, ACS 2020-2024). Median household income is $218,841 (Census Bureau, ACS 2020-2024). By Census place, 30% of its land lies in Southport (a census-designated place); 70% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Southport · its only residential ZIP
- County
- Fairfield County
- Census places
- Southport census-designated place
- House district
- CT-4 119th Congress
- State
- Connecticut
- Time zone
- Eastern
- Land area
- 2.9 sq mi · 1,607 people per sq mi
Where is ZIP code 06890?
06890 centers on 41.149°, -73.288° and covers 2.9 square miles of land plus 0.2 of water. It borders 2 ZIP codes: 06824, 06880.
The map draws ZIP code areas only. For the streets inside 06890, 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 06890 compare with the rest of Fairfield County?
| Measure | 06890 | In Fairfield County | In CT |
|---|---|---|---|
| People (ACS 2020-2024) | 4,653 | 44th of 46 | 189th of 288 |
| Median household income | $219k | 11th of 45 | 11th of 228 |
| Median home value | $1.21M | 10th of 46 | 10th of 245 |
Its median household income is higher than in 99% of U.S. residential ZIP codes, and it is denser than 83% 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 06890?
The 2020 Census counted 4,466 people in 06890; the ACS, which samples households over 2020-2024, estimates 4,653. Between the 2010 and 2020 censuses its population grew 3.7% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 4,653±561 (90% margin)
- 2020 Census count
- 4,466+3.7% since 2010 (4,306)
- Households
- 1,791
- Median age
- 44.7
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 06890?
Of the 4,653 people the ACS estimates in 06890, 27.0% are under 18 and 21.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (87.6%).
- Under 1827.0%
- 18 to 6451.9%
- 65 and older21.1%
- White, not Hispanic87.6%
- Asian, not Hispanic6.1%
- Hispanic or Latino4.7%
- Other or two or more1.4%
- Black, not Hispanic0.2%
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 06890 earn?
Median household income is $218,841 (ACS 2020-2024), the 11th highest of the 45 ranked ZIP codes in Fairfield County. It is not measurably different from 2015-2019 ($240,955 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $218,841±$30,541
- Income per person
- $143,002
- Below the poverty line
- 2.9%
- Unemployed (of the labor force)
- 3.5%
- Adults 25+ with a bachelor's degree
- 83.7%
- Adjusted gross income per tax return, 2022
- $399,3722,210 returns; wages 54% 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 06890?
FHFA's house price index for 06890, built from repeat sales and appraisals of the same homes, rose 78% from 2015 to 2025 and rose 75% from 2020 to 2025, and moved +18.1% in 2025.
- Median home value (owners' estimate)
- $1,212,500
- Median gross rent
- $3,119
- Homes owned by their occupants
- 86.6%
- Housing units
- 1,921
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 06890?
215 business establishments had a location in this ZIP code in 2023, 7 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services43
- Finance and insurance37
- Health care and social assistance20
- Other services (except public administration)19
- Accommodation and food services17
- Retail trade16
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 06890?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 06824 | Fairfield | 36,716 | $193k | 1.7 mi |
| 06880 | Westport | 27,583 | $250k+ | 2.9 mi |
| 06605 | Bridgeport | 25,929 | $56k | 3.8 mi (near) |
| 06604 | Bridgeport | 31,771 | $50k | 4.0 mi (near) |
| 06825 | Fairfield | 21,982 | $136k | 4.0 mi (near) |
| 06851 | Norwalk | 27,865 | $111k | 6.0 mi (near) |
| 06606 | Bridgeport | 49,308 | $73k | 6.1 mi (near) |
| 06608 | Bridgeport | 12,146 | $46k | 6.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.