South Norwalk (SoNo)
125 East Ave, Norwalk, CT 06851
Norwalk is a Long Island Sound city in Fairfield County, first settled in 1649 after Roger Ludlow purchased land east of the Norwalk River from Chief Mahackemo in 1640. The historic boroughs of South Norwalk and East Norwalk consolidated with the town into a single city in 1913. The Norwalk River runs through downtown to the harbor, and the offshore Norwalk Islands sit within the city's waters.
Norwalk uses several zip codes by neighborhood, roughly 06850-06855 and 06856-06860 for post office boxes.
| Area | Zip code | Where it is |
|---|---|---|
| South Norwalk (SoNo) | 06854 | The waterfront district around Washington Street and the South Norwalk train station, home to the Maritime Aquarium. |
| East Norwalk | 06855 | A neighborhood east of the Norwalk River, served in part by the Third Taxing District municipal electric utility. |
| Rowayton | 06853 | A village on the Five Mile River near Long Island Sound, with its own Metro-North station. |
| Silvermine | 06850 | A residential area in the northern part of the city near the Silvermine Arts Center. |
Norwalk covers about 22.89 square miles and borders Stamford, Darien, New Canaan, Wilton and Westport. It was incorporated in 1651.
Start with The Maritime Aquarium at Norwalk and Lockwood-Mathews Mansion Museum, then 3 more below.
A waterfront aquarium in the SoNo district with Long Island Sound marine life exhibits, an IMAX theater and seasonal boat tours.
10 N Water St, Norwalk, CT 06854
An 1868 Second Empire-style mansion museum offering tours of period rooms and grounds.
Norwalk, CT
A city beach on Long Island Sound with a boardwalk, playground and lighted Little League fields.
Calf Pasture Beach Rd, Norwalk, CT
A 19th-century lighthouse on one of the Norwalk Islands, reachable by seasonal ferry from downtown.
Norwalk Islands, Norwalk, CT
A small historic park with an 18th-century schoolhouse and other preserved buildings.
Norwalk, CT
Roger Ludlow purchased land east of the Norwalk River from Chief Mahackemo in 1640, with English settlement following around 1649.
Most of the town was burned during a Revolutionary War raid known as the Battle of Norwalk.
The 1853 Norwalk rail accident, in which a train failed to stop for an open drawbridge, is considered the first major train disaster in United States history.
Norwalk's outdoor life centers on Long Island Sound: beaches, a working harbor, and the offshore Norwalk Islands, alongside the Norwalk River running through downtown.
Downtown and SoNo are walkable, with restaurants, shops and the train station within a compact grid; Rowayton and East Norwalk also have small walkable centers. Much of the rest of the city is more suburban and car-dependent.
125 East Ave, Norwalk, CT 06851
Approximate, without traffic.
Metro-North Railroad's New Haven Line serves four Norwalk stations: South Norwalk, East Norwalk, Rowayton and Merritt 7. The Norwalk Transit District (Wheels) operates local bus routes throughout the city.
Norwalk's real estate tax rate for 2026–27 depends on the taxing district: from 22.982 to 24.671 mills across 6 districts. Connecticut taxes a home at 70% of its appraised value, so every $100,000 of value costs about $1,727 a year in taxes at 24.671 mills.
| 12 months ending | Single-family | Condo |
|---|---|---|
| Sep 2024 | $711,200511 sales | $375,000298 sales |
| Sep 2025 | $760,000473 sales | $387,000368 sales |
October to September, state records. Text us for this month's sales.
22.982–24.671mills, fiscal year 2026–27
Part of East Norwalk is served by the Third Taxing District, a separate municipal electric and administrative district within the city.
| Fiscal year | Town-wide rate listed by the state |
|---|---|
| 2022–23 | – |
| 2023–24 | – |
| 2024–25 | 28.00 |
| 2025–26 | 32.00 |
| 2026–27 | 32.00 |
Norwalk's town rate went from 28.00 in 2024–25 to 32.00 in 2026–27. Next revaluation: October 1, 2028.
What we check on a Norwalk purchase: CHFA limits, the flood map, municipal electric and coastal flood insurance.
CHFA sets Norwalk's income and price limits for Fairfield County. We check them with you before you shop.
See CHFA's limits mapNorwalk's Long Island Sound shoreline, harbor and the Norwalk River put South Norwalk, East Norwalk, Rowayton and other waterfront areas in FEMA flood zones. We check the flood map before you make an offer near the water. We check FEMA's map before you offer.
FEMA's flood map for NorwalkPart of East Norwalk is served by the Third Taxing District's municipal electric utility rather than Eversource. Confirm which utility serves a specific address before comparing costs.
Waterfront and low-lying neighborhoods near Long Island Sound and the Norwalk River can require flood insurance. Check FEMA flood zone status early, especially in SoNo, East Norwalk and Rowayton.
All loans are subject to credit approval, underwriting, and property and program requirements. CHFA and USDA limits and eligibility are set by those agencies and change from time to time.
Send us a Norwalk address and we'll run the numbers, taxes included.
Who to call in Norwalk: Eversource for most of the city; the Third Taxing District provides municipal electric service to part of East Norwalk for power.
Norwalk Town Hall is at 125 East Avenue, Norwalk, CT 06851. Main line: 203-854-3200. Each link opens that office's page on the town's website.
The short answers. Call or text us for the long ones.
Norwalk's real estate tax rate for 2026–27 depends on the taxing district: from 22.982 to 24.671 mills across 6 districts. The motor vehicle rate is 22.95 mills.
In the 12 months from October 2024 through September 2025, the median single-family sale in Norwalk was $760,000 across 473 sales, compared with $711,200 the year before. The median condo sale was $387,000 across 368 sales.
Norwalk's next revaluation takes effect October 1, 2028, on the state's schedule. The new assessments first show up on the tax bills due in July 2029.
Norwalk is in Fairfield County, part of the Western Connecticut Planning Region.
Yes. Metro-North's New Haven Line serves four stations in the city: South Norwalk, East Norwalk, Rowayton and Merritt 7.
Yes, the city provides scheduled curbside trash and recycling collection, along with a separate yard waste drop-off site.
Eversource serves most of the city; the Third Taxing District provides municipal electric service to part of East Norwalk.
Norwalk is roughly 40-50 miles southwest of New York City.
City Hall is at 125 East Avenue, Norwalk, CT 06851, phone 203-854-3200.
Neighbors of Norwalk in Fairfield County and nearby. All Fairfield County towns.