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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/27540

27540

ZIP 27540 is Holly Springs, North Carolina, mostly in Wake County; area codes 919 and 984; Eastern time.

Type
Standard
Time zone
America/New_York
County
Wake +2 more
Metro area
Raleigh-Cary, NC
Population
47,771
Coordinates
35.6202, -78.8650
☼ Live from 27540 — Holly Springs, NC

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Local time: —

Where 27540 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 27540
  • 🔢 Type 27540 into a pocket calculator and turn it upside down: OhSLZ — not quite a word, sorry.
  • ➕ As a number, 27,540 = 2 × 2 × 3 × 3 × 3 × 3 × 5 × 17. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 110101110010100
  • 🏠 Its numerical neighbours: 27539 (Apex, NC, 5 mi away) and 27541 (Hurdle Mills, NC, 46 mi away).
  • 🔄 Backwards, 27540 becomes 04572 — and that is a real ZIP code: Waldoboro, ME, 772 miles away.
  • 👥 58 other ZIP codes are made of exactly the same digits (02457, 02475, 02574, 02745, 04257, 04275, …). The farthest-flung twin is 57420 in Akaska, SD, 1,297 miles away.
  • 🧭 Farther south than 71% of all ZIP codes, and farther east than 77%.
  • 🎯1,113 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 27540 and you would come out at 35.62°S, 101.13°E — 882 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 34m of daylight. Shortest: 9h 45m.
  • 📏 At 48.0 square miles of land, 27540 is bigger than 58% of ZIP codes — room for about 36 Central Parks.
🌙 The sky over 27540 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population47,771This ZIP47,771
Households15,996This ZIP15,996
Housing units16,923This ZIP16,923
Median age36.8This ZIP36.8North Carolina39.1US 38.9
Median household income$128,989This ZIP$128,989North Carolina$72,388US $80,734
Median home value$522,500This ZIP$522,500North Carolina$288,900US $332,700
Median gross rent$1,947This ZIP$1,947North Carolina$1,228US $1,413
Bachelor's degree or higher64.4%This ZIP64.4%
Mean commute29.5 minThis ZIP29.5 min
Population density995.4 / sq miThis ZIP995.4 / sq mi

Business and tax activity

Business establishments1,016This ZIP1,016
Employees11,754This ZIP11,754
Annual payroll$564,696,000This ZIP$564,696,000
Tax returns filed21,800This ZIP21,800
Total adjusted gross income$2,817,555,000This ZIP$2,817,555,000

Land area

Land area47.99 sq miThis ZIP47.99 sq mi
Water area1.16 sq miThis ZIP1.16 sq mi

Counties 27540 spans

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

CountyShare of this ZIP
Wake County 72.4%
Harnett County 20.1%
Chatham County 7.5%

Other place names in 27540

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

ZIP codes near 27540

ZIPCityDistance
27539 Apex, NC 4.9 mi
27526 Fuquay Varina, NC 5.6 mi
27562 New Hill, NC 6.4 mi
27502 Apex, NC 7.3 mi
27518 Cary, NC 9.2 mi
27543 Kipling, NC 10.0 mi
27511 Cary, NC 10.9 mi
27592 Willow Spring, NC 11.7 mi
27523 Apex, NC 11.8 mi
27606 Raleigh, NC 11.9 mi

Find every ZIP code within 10 miles of 27540 →

Questions about this ZIP code

Where is ZIP code 27540?

27540 is in Holly Springs, North Carolina, in Wake County, part of the Raleigh-Cary, NC metropolitan area. Its published point location is 35.6202, -78.8650.

What county is 27540 in?

27540 spans 3 counties: Wake County, Harnett County and Chatham County. Most of it falls in Wake 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 27540?

Holly Springs uses area codes 919 and 984, from NANPA's telephone records.

What time zone is 27540 in?

27540 uses America/New_York.

How many people live in 27540?

About 47,771 people live in ZIP code 27540, in 15,996 households, at 995.4 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 27540?

$128,989 a year, against $72,388 across North Carolina.

What ZIP codes are near 27540?

The closest are 27539 (4.9 mi), 27526 (5.6 mi), 27562 (6.4 mi), 27502 (7.3 mi) and 27518 (9.2 mi).

Is 27540 a PO Box ZIP code?

27540 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “27540 ZIP Code — Holly Springs, North Carolina (Wake County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/27540

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