Fairfield County, CT ZIP codes
There are 83 ZIP codes in Fairfield County, CT, in 35 towns, from 06404 to 06927. The largest are 06902 (Stamford), 06810 (Danbury) and 06606 (Bridgeport).
Connecticut abolished county government in 1960, and since 2022 the Census Bureau counts nine planning regions instead of its eight counties. Fairfield County has no government of its own, but the counties are still how Connecticut's towns and ZIP codes are placed. Its ZIP codes lie in the Western Connecticut, Greater Bridgeport and Naugatuck Valley planning regions.
- ZIP codes
- 83
- Towns
- 35
- County FIPS
09001- State
- Connecticut
- Population
- 968,256
- Land area
- 625 sq mi
Land area from the Census Bureau's 2020 Gazetteer, the last to list Fairfield County. Population is the sum of the ZIP codes listed here (American Community Survey 2020–2024), since the Bureau now counts Connecticut by planning region.
Fairfield County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Fairfield County ZIP codes
The ZIP codes of Fairfield County, 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.
Fairfield County in numbers
About 968,256 people live in Fairfield County, in 359,761 households, the most populous of Connecticut's 8 counties.
| Population | 968,256 |
|---|---|
| Households | 359,761 |
| Population density | 1,549 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, summed over the 83 ZIP codes listed here, as the Bureau no longer publishes figures for Fairfield County; medians do not add up and are left out. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Fairfield County
| Town | ZIP codes | Population |
|---|---|---|
| Bridgeport | 10 | 149,153 |
| Stamford | 17 | 137,144 |
| Norwalk | 10 | 92,187 |
| Danbury | 6 | 87,263 |
| Fairfield | 3 | 58,698 |
| Stratford | 2 | 52,790 |
| Shelton | 1 | 41,889 |
| Trumbull | 1 | 37,281 |
| Westport | 4 | 27,583 |
| Darien | 1 | 21,936 |
| Monroe | 1 | 18,949 |
| Wilton | 1 | 18,777 |
| Brookfield | 1 | 17,908 |
| Greenwich | 3 | 14,792 |
| New Fairfield | 1 | 13,584 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Fairfield County.
Not sure you are in Fairfield County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Fairfield County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
06404 | Botsford , CT | No street area | — | — | — |
06440 | Hawleyville , CT | No street area | — | — | — |
06468 | Monroe , CT | Standard | 18,949 | $157,250 | $503,200 |
06470 | Newtown , CT | Standard | 15,593 | $153,238 | $577,800 |
06482 | Sandy Hook , CT | Standard | 12,000 | $159,828 | $499,200 |
06484 | Shelton , CT | Standard | 41,889 | $108,185 | $452,600 |
06491 | Stevenson , CT | No street area | — | — | — |
06601 | Bridgeport , CT | No street area | — | — | — |
06602 | Bridgeport , CT | No street area | — | — | — |
06604 | Bridgeport , CT | Standard | 31,771 | $50,026 | $267,100 |
06605 | Bridgeport , CT | Standard | 25,929 | $56,179 | $335,500 |
06606 | Bridgeport , CT | Standard | 49,308 | $73,372 | $289,000 |
06607 | Bridgeport , CT | Standard | 7,979 | $50,000 | $232,700 |
06608 | Bridgeport , CT | Standard | 12,146 | $45,754 | $235,800 |
06610 | Bridgeport , CT | Standard | 22,020 | $51,634 | $228,300 |
06611 | Trumbull , CT | Standard | 37,281 | $163,073 | $547,300 |
06612 | Easton , CT | Standard | 7,670 | $222,604 | $783,100 |
06614 | Stratford , CT | Standard | 35,654 | $110,943 | $374,800 |
06615 | Stratford , CT | Standard | 17,136 | $81,534 | $364,700 |
06673 | Bridgeport , CT | No street area | — | — | — |
06699 | Bridgeport , CT | No street area | — | — | — |
06784 | Sherman , CT | Standard | 3,583 | $116,750 | $492,700 |
06801 | Bethel , CT | Standard | 20,796 | $116,541 | $434,600 |
06804 | Brookfield , CT | Standard | 17,908 | $148,945 | $480,200 |
06807 | Cos Cob , CT | Standard | 7,650 | $192,115 | $1,443,200 |
06810 | Danbury , CT | Standard | 55,833 | $76,933 | $402,100 |
06811 | Danbury , CT | Standard | 31,228 | $104,640 | $421,200 |
06812 | New Fairfield , CT | Standard | 13,584 | $137,647 | $484,800 |
06813 | Danbury , CT | No street area | — | — | — |
06814 | Danbury , CT | No street area | — | — | — |
06816 | Danbury , CT | No street area | — | — | — |
06817 | Danbury , CT | No street area | — | — | — |
06820 | Darien , CT | Standard | 21,936 | $250,000+ | $1,822,400 |
06824 | Fairfield , CT | Standard | 36,716 | $193,300 | $869,100 |
06825 | Fairfield , CT | Standard | 21,982 | $135,504 | $630,600 |
06828 | Fairfield , CT | No street area | — | — | — |
06829 | Georgetown , CT | No street area | — | — | — |
06830 | Greenwich , CT | Standard | 24,880 | $146,654 | $1,660,700 |
06831 | Greenwich , CT | Standard | 15,210 | $227,159 | $1,696,000 |
06836 | Greenwich , CT | No street area | — | — | — |
06838 | Greens Farms , CT | No street area | — | — | — |
06840 | New Canaan , CT | Standard | 20,870 | $250,000+ | $1,611,900 |
06850 | Norwalk , CT | Standard | 19,692 | $123,633 | $581,200 |
06851 | Norwalk , CT | Standard | 27,865 | $111,341 | $587,400 |
06852 | Norwalk , CT | No street area | — | — | — |
06853 | Norwalk , CT | Standard | 3,171 | $250,000+ | $1,610,200 |
06854 | Norwalk , CT | Standard | 32,118 | $86,679 | $460,500 |
06855 | Norwalk , CT | Standard | 9,351 | $106,439 | $511,200 |
06856 | Norwalk , CT | No street area | — | — | — |
06857 | Norwalk , CT | No street area | — | — | — |
06858 | Norwalk , CT | No street area | — | — | — |
06860 | Norwalk , CT | No street area | — | — | — |
06870 | Old Greenwich , CT | Standard | 7,864 | $250,000+ | $1,788,700 |
06875 | Redding Center , CT | No street area | — | — | — |
06876 | Redding Ridge , CT | No street area | — | — | — |
06877 | Ridgefield , CT | Standard | 25,110 | $179,219 | $836,200 |
06878 | Riverside , CT | Standard | 8,328 | $250,000+ | $1,968,800 |
06879 | Ridgefield , CT | No street area | — | — | — |
06880 | Westport , CT | Standard | 27,583 | $250,000+ | $1,402,100 |
06881 | Westport , CT | No street area | — | — | — |
06883 | Weston , CT | Standard | 10,396 | $250,000+ | $996,700 |
06888 | Westport , CT | No street area | — | — | — |
06889 | Westport , CT | No street area | — | — | — |
06890 | Southport , CT | Standard | 4,653 | $218,841 | $1,212,500 |
06896 | Redding , CT | Standard | 8,779 | $186,060 | $706,300 |
06897 | Wilton , CT | Standard | 18,777 | $242,199 | $928,800 |
06901 | Stamford , CT | Standard | 11,037 | $102,641 | $478,700 |
06902 | Stamford , CT | Standard | 73,392 | $94,843 | $510,400 |
06903 | Stamford , CT | Standard | 14,010 | $204,028 | $911,000 |
06904 | Stamford , CT | No street area | — | — | — |
06905 | Stamford , CT | Standard | 20,725 | $136,757 | $618,400 |
06906 | Stamford , CT | Standard | 9,199 | $93,675 | $596,800 |
06907 | Stamford , CT | Standard | 8,705 | $106,379 | $590,000 |
06910 | Stamford , CT | No street area | — | — | — |
06911 | Stamford , CT | No street area | — | — | — |
06912 | Stamford , CT | No street area | — | — | — |
06913 | Stamford , CT | No street area | — | — | — |
06914 | Stamford , CT | No street area | — | — | — |
06920 | Stamford , CT | No street area | — | — | — |
06921 | Stamford , CT | No street area | — | — | — |
06922 | Stamford , CT | No street area | — | — | — |
06926 | Stamford , CT | No street area | — | — | — |
06927 | Stamford , CT | No street area | — | — | — |
Cite this page
zipcodes.pro. “Fairfield County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ct/county/fairfield
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