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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/06451

06451

ZIP 06451 is in Meriden, Connecticut, mostly in New Haven County; area codes 203 and 475; Eastern time. Meriden has 2 ZIP codes; the other is 06450.

Type
Standard
Time zone
America/New_York
County
New Haven +1 more
Metro area
none
Population
24,851
Coordinates
41.5419, -72.8234
☼ Live from 06451 — Meriden, CT

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Local time: —

Where 06451 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 06451
  • 🔢 Type 06451 into a pocket calculator and turn it upside down: IShgO — not quite a word, sorry.
  • ➕ 06451 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100100110011
  • 🏠 Its numerical neighbours: 06450 (Meriden, CT, 3 mi away) and 06455 (Middlefield, CT, 6 mi away).
  • 🔄 Backwards, 06451 becomes 15460 — and that is a real ZIP code: Martin, PA, 390 miles away.
  • 👥 78 other ZIP codes are made of exactly the same digits (01546, 01564, 05146, 05461, 05641, 06145, …). The farthest-flung twin is 56140 in Ihlen, MN, 1,202 miles away.
  • 🧭 Farther north than 71% of all ZIP codes, and farther east than 93%.
  • 🎯1,350 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 06451 and you would come out at 41.54°S, 107.18°E — 818 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 11m of daylight. Shortest: 9h 10m.
  • 📏 At 9.8 square miles of land, 06451 is bigger than 27% of ZIP codes — room for about 7.5 Central Parks.
🌙 The sky over 06451 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population24,851This ZIP24,851
Households10,022This ZIP10,022
Housing units10,900This ZIP10,900
Median age38.8This ZIP38.8Connecticut41.1US 38.9
Median household income$71,255This ZIP$71,255Connecticut$95,781US $80,734
Median home value$239,800This ZIP$239,800Connecticut$366,900US $332,700
Median gross rent$1,213This ZIP$1,213Connecticut$1,488US $1,413
Bachelor's degree or higher19.7%This ZIP19.7%
Mean commute24.1 minThis ZIP24.1 min
Population density2,528.8 / sq miThis ZIP2,528.8 / sq mi

Business and tax activity

Business establishments325This ZIP325
Employees5,134This ZIP5,134
Annual payroll$264,155,000This ZIP$264,155,000
Tax returns filed12,530This ZIP12,530
Total adjusted gross income$721,589,000This ZIP$721,589,000

Land area

Land area9.83 sq miThis ZIP9.83 sq mi
Water area0.22 sq miThis ZIP0.22 sq mi

Counties 06451 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
New Haven County 99.8%
Hartford County 0.2%

Other place names in 06451

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 06451

ZIPCityDistance
06450 Meriden, CT 2.5 mi
06467 Milldale, CT 4.3 mi
06410 Cheshire, CT 4.6 mi
06037 Berlin, CT 5.0 mi
06411 Cheshire, CT 5.0 mi
06479 Plantsville, CT 5.1 mi
06489 Southington, CT 5.5 mi
06492 Wallingford, CT 5.6 mi
06444 Marion, CT 5.7 mi
06455 Middlefield, CT 5.8 mi

Find every ZIP code within 10 miles of 06451 →

Questions about this ZIP code

Where is ZIP code 06451?

06451 is in Meriden, Connecticut, in New Haven County. Its published point location is 41.5419, -72.8234.

What county is 06451 in?

06451 spans 2 counties: New Haven County and Hartford County. Most of it falls in New Haven County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 06451?

Meriden uses area codes 203 and 475, from NANPA's telephone records.

What time zone is 06451 in?

06451 uses America/New_York.

How many people live in 06451?

About 24,851 people live in ZIP code 06451, in 10,022 households, at 2,528.8 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 06451?

$71,255 a year, against $95,781 across Connecticut.

What ZIP codes are near 06451?

The closest are 06450 (2.5 mi), 06467 (4.3 mi), 06410 (4.6 mi), 06037 (5 mi) and 06411 (5 mi).

Is 06451 a PO Box ZIP code?

06451 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “06451 ZIP Code — Meriden, Connecticut (New Haven County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/06451

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