Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — CITY/CT/RIVERSIDE

Riverside ZIP code, Connecticut

The ZIP code for Riverside, CT is 06878, and its area codes are 203 and 475.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
8,954
Area codes
203, 475

NANPA lists no telephone rate centre for Riverside itself, so these are the area codes of the nearest one, Old Greenwich (0.8 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Riverside uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Riverside in numbers

About 8,954 people live in Riverside, in 2,933 households, the 40th-largest of Connecticut's 213 census places. The median household income is $250,000+ a year (US: $80,734). The median owner-occupied home is valued at $1,900,300 (5.2 times the Connecticut median), and median gross rent is $3,500+ a month. The median age is 40.8; 78.8% of adults 25 and over hold a bachelor's degree or higher (42.5% across Connecticut); the average commute takes 35 minutes.

Population8,954Riverside8,954
Households2,933Riverside2,933
Median age40.8Riverside40.8Connecticut41.1US 38.9
Median household income$250,000+Riverside$250,000+Connecticut$95,781US $80,734
Median home value$1,900,300Riverside$1,900,300Connecticut$366,900US $332,700
Median gross rent$3,500+Riverside$3,500+Connecticut$1,488US $1,413
Bachelor's degree or higher78.8%Riverside78.8%Connecticut42.5%US 35.7%
Mean commute35.4 minRiverside35.4 minConnecticut26.5 minUS 26.4 min
Population density3,698 / sq miRiverside3,698 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Riverside CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Riverside

ZIP codes with the USPS city name Riverside
ZIP City Type Population Median income Median home
06878 Riverside , CT Standard 8,328 $250,000+ $1,968,800

Other ZIP codes overlapping Riverside

These ZIP codes cover part of Riverside but are addressed as somewhere else.

ZIP codes overlapping Riverside
ZIP City Type Population Median income Median home
06870 Old Greenwich , CT Standard 7,864 $250,000+ $1,788,700

Map of Riverside ZIP codes

06878

The ZIP codes of Riverside, CT, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Riverside

The nearest larger towns are Greenwich (14,792 people, 2.3 mi), Stamford (137,144 people, 3.9 mi) and Port Chester, NY (31,102 people, 4.7 mi).

Towns near Riverside
TownPopulationDistance
Old Greenwich 6,936 1.1 mi
Cos Cob 7,546 1.3 mi
Greenwich 14,792 2.3 mi
Pemberwick 3,665 3.9 mi
Stamford 137,144 3.9 mi
Byram 4,633 4.2 mi
Glenville 2,656 4.2 mi
Port Chester, NY 31,102 4.7 mi
Noroton 5,539 5.2 mi
Rye Brook, NY 9,900 5.3 mi
Noroton Heights 2,782 5.4 mi
Tokeneke 2,951 6.5 mi
Harrison, NY 29,961 7.1 mi
Rye, NY 16,428 8.0 mi

More nearby: every ZIP code in Fairfield County · Connecticut ZIP codes

Cite this page

zipcodes.pro. “Riverside, CT ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ct/riverside

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