PlainZIP

Riverside, CT · standard

ZIP Code 06878

Fairfield County, Connecticut - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

8,043
1,295/sq mi
$250,001
Median income
$1,968,800
Median home value
78.8%
Bachelor's or higher

The verdict

Riverside pairs a top-decile household income with top-decile home values, in a low-density, homeowner-dominated area.

Top 1%
household income, US ZIPs
Top 1%
home value, US ZIPs
1,295
people per sq mi
83%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 06878 against every reporting US ZIP.

ZIP code 06878 is a mid-sized community (a standard USPS delivery area) in Riverside, Fairfield County, Connecticut, home to 8,043 residents across 6.2 square miles, a density of 1,295 people per square mile, in the New York time zone.

ZIP 06878 skews affluent, with a median household income of $250,001 (121% above the Connecticut average), while per-capita income is $147,326. The poverty rate stands at 3.6% and the unemployment rate at 5.7%. The typical home here is valued at $1,968,800 (353% above the state average); renters pay a median of $3,501 monthly, and 82.6% of units are owner-occupied.

This is a highly-educated ZIP: 78.8% of adults hold a bachelor's degree or higher, the median age is 41.8, and the average commute is 36 minutes. Beyond these figures, 10 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing Fairfield County, letting you compare 06878 to its immediate surroundings rather than a national baseline alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 06878

Top 5 sectors by establishment count in Riverside, CT

Which industries have the most business establishments in ZIP 06878.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 06878, Riverside, CT · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

8,043

Population

6.2

Area (sq mi)

1,295

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 06878?

41.8

Median Age

50.0%

Male

50.0%

Female

29.6%

Foreign-Born

White 64.4%
African American 2.8%
Asian 13.4%
American Indian or Alaska Native 1.4%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 14.9%
Hispanic or Latino 15.6%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$250,001

Median Household Income

+121% vs state

$147,326

Per Capita Income

3.6%

Poverty Rate

5.7%

Unemployment Rate

36.3 min

Mean Commute Time

How ZIP 06878 ranks nationally

Riverside, CT household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$250,001 Top 1% higher than 99% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Below this entry. $140,000–$160,000: 686 US ZIPs (2%). Below this entry. $160,000–$180,000: 364 US ZIPs (1%). Below this entry. $180,000–$200,000: 186 US ZIPs (1%). Below this entry. $200,000–$220,000: 324 US ZIPs (1%). This entry sits in this band. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 85.6%
Bachelor's Degree or Higher 78.8%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

2,787

Total Housing Units

2,686

Occupied Units

101

Vacant Units

3.10

Avg Household Size

Occupancy Type

Owner 82.6%
Renter 17.4%

$1,968,800

Median Home Value

+353% vs state

$3,501

Median Rent

1962

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+2.1%

YoY Change (2022)

195

HPI Index (2000 = 100)

+95%

Total Change Since 2000

Home values in ZIP 06878 have increased 2.1% over the past year (2022). Since 2000, this ZIP has seen +95% cumulative appreciation.

Year Annual Change HPI Index
2018 -3.2% 171
2019 +4.3% 179
2020 -0.9% 177
2021 +7.6% 191
2022 +2.1% 195

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2022. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 193 business establishments in ZIP 06878, employing approximately 2,418 people with a combined annual payroll of $222,491,000.

193

Businesses

2,418

Employees

$222.5M

Annual Payroll

14

Industry Sectors

Industry Establishments % of Total
Professional, scientific, and technical services 29 15.0%
Retail trade 24 12.4%
Health care and social assistance 22 11.4%
Finance and insurance 21 10.9%
Accommodation and food services 16 8.3%
Other services (except public administration) 15 7.8%
Construction 13 6.7%
Real estate and rental and leasing 12 6.2%
Administrative and support and waste management and remediation services 12 6.2%
Manufacturing 6 3.1%
Wholesale trade 6 3.1%
Arts, entertainment, and recreation 6 3.1%
Educational services 5 2.6%
Information 3 1.6%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 06878 vs 06870 →

ZIP 06878 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 06878 ranks #8 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 06878 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 06878 ranks the highest of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
06870 Old Greenwich, CT 7,316 0.7 mi
06807 Cos Cob, CT 7,150 2.1 mi
06830 Greenwich, CT 24,027 2.4 mi
06902 Stamford, CT 63,406 2.7 mi
06901 Stamford, CT 6,828 2.8 mi
06905 Stamford, CT 19,649 4.4 mi
06906 Stamford, CT 9,088 4.1 mi
10573 Port Chester, NY 38,352 5.0 mi
06903 Stamford, CT 14,499 7.2 mi
06907 Stamford, CT 9,016 5.8 mi

More ZIP Codes in Fairfield County

06902 standard
Stamford, CT
Pop: 63,406
06810 standard
Danbury, CT
Pop: 49,482
06606 standard
Bridgeport, CT
Pop: 46,236
06484 standard
Shelton, CT
Pop: 39,559
06611 standard
Trumbull, CT
Pop: 36,091
06824 standard
Fairfield, CT
Pop: 33,900

Related Areas

Fairfield County Riverside, CT Connecticut

Frequently Asked Questions

What county is ZIP code 06878 in? ▼
ZIP code 06878 (Riverside) is located in Fairfield County, Connecticut. Fairfield County contains multiple ZIP codes, see the full list at /counties/fairfield-ct.
What is the population of ZIP code 06878? ▼
ZIP code 06878 in Riverside, CT has a population of 8,043 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 06878? ▼
The median household income in ZIP 06878 is $250,001, which is 228% above the national average of $76,288.
What is the average home value in ZIP 06878? ▼
The median home value in ZIP 06878 is $1,968,800, which is 608% above the national average of $278,155.
What is the demographic makeup of ZIP 06878? ▼
The largest racial group in ZIP 06878 is White at 64.4%. Hispanic or Latino residents make up 15.6% of the population.
How many businesses are in ZIP code 06878? ▼
ZIP code 06878 has 193 business establishments employing approximately 2,418 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 06878? ▼
The top industries by establishment count in ZIP 06878 are: Professional, scientific, and technical services (29), Retail trade (24), Health care and social assistance (22). There are 14 industry sectors represented in total.
How have home values changed in ZIP code 06878? ▼
According to the FHFA House Price Index, home values in ZIP 06878 increased by 2.1% in 2022. Since 2000, home values in this ZIP have appreciated by approximately 95%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 06878? ▼
In ZIP code 06878, 85.6% of residents aged 25+ have a high school diploma or higher, and 78.8% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 06878? ▼
The mean commute time for workers in ZIP code 06878 is 36.3 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 06878? ▼
In ZIP code 06878, approximately 82.6% of occupied housing units are owner-occupied and 17.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 06878? ▼
The poverty rate in ZIP code 06878 is 3.6% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.