
Fairfield County · Connecticut
ZIP code 06903
- Population
- 13,630
- Median income
- $203,438
- Median home
- $893,900
- Sales tax
- 6.35%
ZCTA residents
Household, past 12 months
Owner-occupied value
Connecticut state rate
Quick answer
ZIP 06903 sits in Fairfield County, Connecticut and is home to 13,630 people. Median household income is $203,438, the median home is worth $893,900 and median gross rent is $2,899. 92.5% of households own their home, and purchases are taxed at 6.35% (Connecticut state rate).
- County
- Fairfield County
- State
- Connecticut (CT)
- Area codes
- Not published
- Metro area
- Outside covered metros
FIPS 09001
288 ZIPs covered
No NANPA match for this ZIP
Rate jurisdiction used for tax
The numbers for 06903
American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.
- Population
- 13,630ZIP 06903 residents
- Median household income
- $203,438Past 12 months, inflation adjusted
- Median home value
- $893,900Owner-occupied units
- Median gross rent
- $2,899Rent plus utilities, monthly
- Median age
- 50.8 yrsAll residents
- Homeownership rate
- 92.5%Owner-occupied households
ZIP 06903 in context
How this area compares with national benchmarks.
ZIP 06903 is a mid-size town in Fairfield County, Connecticut, with 13,630 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #102 of 288 ranked by population — larger than 64% of them. The median age here is 50.8 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.
Households in ZIP 06903 earn a median of $203,438 a year, 159% above the national figure of $78,538. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 3.1% of residents here, less than half the 12.4% national rate.
The typical owner-occupied home in ZIP 06903 is valued at $893,900, 194.6% above the national figure, while median gross rent runs $2,899 a month, 106.2% above the national figure, or roughly $34,788 across a full year. A household on the local median income would put about 17.1% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 4.4×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 92.5% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.
A median age of 50.8 puts ZIP 06903 well into retirement-weighted territory, which pulls median household income down even where household wealth is high, because retirement draws are counted differently from wages.
No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.
Reading ZIP 06903 in context
How 06903 sits inside Fairfield County and Connecticut.
ZIP 06903 is tabulated inside Fairfield County, Connecticut, one of 46 ZIP areas the Census publishes for that county and 288 across Connecticut. This is a mid-sized suburban ZIP inside a county that is split across many delivery areas. County assignment on this page follows the largest share of the ZIP's land area, which matters where a delivery route crosses a county line: mail addressed to 06903 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.
Against its own county, 06903 reports a median household income of $203,438, 48% above the $137,778 county median, and 92% above the $105,813 typical CT ZIP. Owner-occupied homes are valued at a median of $893,900, 66% above the county figure and 156% above the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at $2,899 a month, which is why it reads higher than the advertised rent on a listing for the same unit.
Connecticut charges 6.35% statewide, and no local sales tax is layered on top, so the state rate is the full amount collected in 06903.
Everything above comes from the Census Bureau American Community Survey 2019-2023 ACS 5-year estimates for this ZIP Code Tabulation Area, with sales tax rates traced to the state revenue agency. Five-year estimates pool sixty months of responses, so they are stable enough to compare 06903 with its neighbours but always trail the current year, and any value the Census suppressed for sample size is shown as unpublished rather than filled in with a model.
Sales tax in 06903
What a purchase inside this ZIP costs at checkout.
Connecticut levies 6.35% statewide with no local add-ons. Check the county page for the local component before you quote a price.
Affordability in this ZIP
Derived from the Census medians above — indicative, not an offer.
A rent burden above 30% is the federal threshold for cost-burdened households, and a price-to-income multiple above 4× is generally considered a stretched housing market. The mortgage figure is principal and interest only — taxes, insurance and HOA dues are extra.
How 06903 compares
ZIP 06903 against the median ZIP in Fairfield County and across Connecticut.
| Measure | ZIP 06903 | County median | State median | vs state |
|---|---|---|---|---|
| Median household income | $203,438 | $137,778 | $105,813 | +92% |
| Median home value | $893,900 | $537,250 | $348,800 | +156% |
| Median gross rent | $2,899 | $1,943 | $1,432 | +102% |
| Population | 13,630 | 18,636 | 7,984 | +71% |
Medians are computed across the 46 ZIP areas in Fairfield County and the 288 ZIP areas in Connecticut.
Statewide rank
Where this ZIP places among all 288 Connecticut ZIP areas.
- Income
- #11
- Home value
- #13
- Population
- #102
richer than 96% of 270 state ZIPs
above 95% of 273 state ZIPs
larger than 65% of 288 state ZIPs
Comparable ZIP codes
Connecticut ZIP areas with almost the same household income.
Nearby ZIP codes
Other ZIP codes filed under Fairfield County.
Adjacent ZIP Codes
Other ZIP codes in Fairfield County, Connecticut.
ZIP 06903 questions
Common questions about this ZIP code.
- Where is ZIP code 06903?
- ZIP 06903 lies mostly in Fairfield County, Connecticut. County assignment follows the largest share of land area, so a ZIP straddling a county line is filed under its dominant county.
- What sales tax do I pay in 06903?
- Connecticut charges 6.35% statewide.
- Is 06903 expensive to live in?
- Median rent runs $2,899 a month, about 17% of median household income, and the median home is worth $893,900 — +156% against the typical Connecticut ZIP.
- Is a ZCTA the same as a postal ZIP code?
- Not exactly. The Census builds ZIP Code Tabulation Areas from the ZIP codes of addresses inside each census block, so a ZCTA can differ slightly from the USPS delivery route of the same number, and PO-box-only ZIPs have no ZCTA at all.
Keep going
Related pages for this area.
Sources & transparency
- US Census Bureau, ACS 2019-2023 5-year estimates — 2019-2023 ACS 5-year — population, income, housing
- Census 2020 ZCTA-to-county relationship file — County assignment by largest land-area overlap
- Connecticut Department of Revenue Services — Sales tax rates and local add-ons
Last reviewed December 2024. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.