27520
ZIP 27520 is in Clayton, North Carolina, mostly in Johnston County; area codes 919 and 984; Eastern time. Clayton has 3 ZIP codes; the others are 27527 and 27528.
- Type
- Standard
- Time zone
- America/New_York
- County
- Johnston +1 more
- Metro area
- Raleigh-Cary, NC
- Population
- 48,014
- Coordinates
- 35.6118, -78.4764
Weather right now
Asking the National Weather Service…
Where 27520 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.
- 🔢 Type 27520 into a pocket calculator and turn it upside down: OZSLZ — not quite a word, sorry.
- ➕ As a number, 27,520 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 43. Its digits add up to 16, a total 1,922 other ZIP codes share.
- 💾In binary, the way a computer stores it:
110101110000000 - 🏠 Its numerical neighbours: 27519 (Cary, NC, 27 mi away) and 27521 (Coats, NC, 17 mi away).
- 🔄 Backwards, 27520 becomes 02572, which is not a ZIP code at all.
- 👥 30 other ZIP codes are made of exactly the same digits (02725, 07522, 20527, 20572, 20725, 20752, …). The farthest-flung twin is 57220 in Bruce, SD, 1,147 miles away.
- 🧭 Farther south than 71% of all ZIP codes, and farther east than 78%.
- 🎯1,134 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 27520 and you would come out at 35.61°S, 101.52°E — 860 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 34m of daylight. Shortest: 9h 45m.
- 📏 At 70.8 square miles of land, 27520 is bigger than 69% of ZIP codes — room for about 54 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 48,014This ZIP48,014 |
|---|---|
| Households | 17,819This ZIP17,819 |
| Housing units | 18,621This ZIP18,621 |
| Median age | 37.6This ZIP37.6North Carolina39.1US 38.9 |
| Median household income | $86,322This ZIP$86,322North Carolina$72,388US $80,734 |
| Median home value | $320,900This ZIP$320,900North Carolina$288,900US $332,700 |
| Median gross rent | $1,605This ZIP$1,605North Carolina$1,228US $1,413 |
| Bachelor's degree or higher | 33.4%This ZIP33.4% |
| Mean commute | 30.1 minThis ZIP30.1 min |
| Population density | 678.3 / sq miThis ZIP678.3 / sq mi |
Business and tax activity
| Business establishments | 1,000This ZIP1,000 |
|---|---|
| Employees | 13,795This ZIP13,795 |
| Annual payroll | $757,044,000This ZIP$757,044,000 |
| Tax returns filed | 22,930This ZIP22,930 |
| Total adjusted gross income | $1,640,383,000This ZIP$1,640,383,000 |
Land area
| Land area | 70.78 sq miThis ZIP70.78 sq mi |
|---|---|
| Water area | 0.11 sq miThis ZIP0.11 sq mi |
Counties 27520 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Johnston County | 95.9% |
| Wake County | 4.1% |
Other place names in 27520
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 27520
| ZIP | City | Distance |
|---|---|---|
27528 | Clayton, NC | 3.1 mi |
27527 | Clayton, NC | 6.1 mi |
27529 | Garner, NC | 6.2 mi |
27593 | Wilsons Mills, NC | 6.7 mi |
27610 | Raleigh, NC | 10.0 mi |
27603 | Raleigh, NC | 10.6 mi |
27577 | Smithfield, NC | 11.1 mi |
27592 | Willow Spring, NC | 11.6 mi |
27545 | Knightdale, NC | 11.9 mi |
27576 | Selma, NC | 12.3 mi |
Find every ZIP code within 10 miles of 27520 →
Questions about this ZIP code
Where is ZIP code 27520?
27520 is in Clayton, North Carolina, in Johnston County, part of the Raleigh-Cary, NC metropolitan area. Its published point location is 35.6118, -78.4764.
What county is 27520 in?
27520 spans 2 counties: Johnston County and Wake County. Most of it falls in Johnston 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 27520?
Clayton uses area codes 919 and 984, from NANPA's telephone records.
What time zone is 27520 in?
27520 uses America/New_York.
How many people live in 27520?
About 48,014 people live in ZIP code 27520, in 17,819 households, at 678.3 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 27520?
$86,322 a year, against $72,388 across North Carolina.
What ZIP codes are near 27520?
The closest are 27528 (3.1 mi), 27527 (6.1 mi), 27529 (6.2 mi), 27593 (6.7 mi) and 27610 (10 mi).
Is 27520 a PO Box ZIP code?
27520 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “27520 ZIP Code — Clayton, North Carolina (Johnston County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/27520
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/27520.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.