27520 ZIP Code, Clayton, NC
27520 is a ZIP code in Clayton, North Carolina in Johnston County. It covers 71 square miles of land. The closest ZIP codes are 27527, 27529 and 27593. 48,014 people live here in 17,819 households, more than in 9 of every 10 North Carolina ZIP codes. With about 678 people per square mile it is lightly settled, and most homes are owner-occupied (74%). Median household income is $86,322, above the North Carolina median of $72,388.
Quick facts
- Mailing city: Clayton, NC
- County: Johnston County
- Land area: 71 sq mi
- Population: 48,014
- Median household income: $86,322
- Carrier routes: 28 (21,803 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 48,014 |
| Households | 17,819 |
| Median household income | $86,322 |
| Income per person | $41,157 |
| Median age | 37.6 |
| Homeowners | 74.3% |
| Median home value | $320,900 |
| Median rent | $1,605 |
| Bachelor's degree or higher | 33.4% |
| Average commute (minutes) | 30.1 |
| Households with kids under 18 | 31.7% |
| Moved in the past year | 8.1% |
| Below the poverty line | 6.3% |
| Broadband internet | 91.8% |
| Speak a non-English language at home | 18.0% |
Household income
| % of households | Value |
|---|---|
| <$10K | 2.7% |
| $10–15K | 1.1% |
| $15–25K | 3.4% |
| $25–35K | 9.2% |
| $35–50K | 7.6% |
| $50–75K | 17.2% |
| $75–100K | 14.9% |
| $100–150K | 22.3% |
| $150–200K | 12.1% |
| $200K+ | 9.5% |
Age
| % of all residents | Value |
|---|---|
| <10 | 11.5% |
| 10–19 | 14.9% |
| 20–24 | 6.5% |
| 25–34 | 13.6% |
| 35–44 | 14.0% |
| 45–54 | 14.8% |
| 55–64 | 12.5% |
| 65–74 | 8.1% |
| 75+ | 4.0% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 54.7% |
| Owned outright | 16.7% |
| Rented | 24.4% |
| Vacant | 4.3% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 80.2% |
| Townhome | 3.7% |
| 2–4 units | 2.4% |
| 5–19 units | 4.0% |
| 20+ units | 2.2% |
| Mobile / other | 7.4% |
Businesses in 27520
1,000 business establishments with 13,795 employees (ZIP Codes Business Patterns 2023).
- Construction: 209
- Health Care and Social Assistance: 122
- Retail Trade: 111
- Other Services (except Public Administration): 94
- Accommodation and Food Services: 86
- Professional, Scientific, and Technical Services: 81
- Administrative and Support and Waste Management and Remediation Services: 74
- Real Estate and Rental and Leasing: 50
EDDM carrier routes
27520 has 28 USPS carrier routes with 21,803 residential and 880 business mailboxes. Open the EDDM route map.
Carrier routes in 27520
27520 has 28 USPS carrier routes (6 city (C), 22 rural (R)) with 21,803 residential and 880 business mailboxes. Routes range from 527 homes (C006) to 1,104 homes (R041); the median route has 751 homes. The Census counted 17,819 households in 27520 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 0 |
| 500–749 | 13 |
| 750–999 | 12 |
| 1,000–1,499 | 3 |
| 1,500+ | 0 |
Best routes in 27520 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C003 — USPS business mailboxes 218, 760 homes
- Route R018 — USPS business mailboxes 112, 702 homes
- Route R019 — USPS business mailboxes 106, 569 homes
- Route C004 — USPS business mailboxes 96, 735 homes
- Route C001 — USPS business mailboxes 93, 643 homes
Select these 5 routes on the route map
Every carrier route in 27520
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 643 | 93 | $61,940 | — | — | — |
| C002 | City | 952 | 10 | $71,622 | — | — | — |
| C003 | City | 760 | 218 | $58,732 | — | — | — |
| C004 | City | 735 | 96 | $71,622 | — | — | — |
| C005 | City | 1,063 | 3 | $76,697 | — | — | — |
| C006 | City | 527 | 26 | $48,837 | — | — | — |
| R001 | Rural | 662 | 1 | $122,371 | — | — | — |
| R003 | Rural | 750 | 40 | $80,221 | — | — | — |
| R004 | Rural | 747 | 6 | $87,353 | — | — | — |
| R005 | Rural | 632 | 2 | $128,001 | — | — | — |
| R007 | Rural | 802 | 5 | $71,476 | — | — | — |
| R008 | Rural | 752 | 1 | $104,018 | — | — | — |
| R009 | Rural | 857 | 4 | $55,388 | — | — | — |
| R011 | Rural | 719 | 6 | $88,176 | — | — | — |
| R012 | Rural | 768 | 26 | $94,906 | — | — | — |
| R014 | Rural | 673 | 13 | $122,371 | — | — | — |
| R017 | Rural | 962 | 3 | $70,808 | — | — | — |
| R018 | Rural | 702 | 112 | $84,248 | — | — | — |
| R019 | Rural | 569 | 106 | $104,018 | — | — | — |
| R021 | Rural | 572 | 24 | $122,279 | — | — | — |
| R022 | Rural | 792 | 42 | $105,472 | — | — | — |
| R024 | Rural | 823 | 2 | $71,476 | — | — | — |
| R027 | Rural | 645 | 5 | $122,371 | — | — | — |
| R030 | Rural | 906 | 5 | $129,629 | — | — | — |
| R034 | Rural | 651 | 30 | $94,906 | — | — | — |
| R036 | Rural | 1,062 | 1 | $80,221 | — | — | — |
| R041 | Rural | 1,104 | 0 | $58,005 | — | — | — |
| R042 | Rural | 973 | 0 | $122,371 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 27520 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 27527 — Archer Lodge town, NC (6.1 mi)
- 27529 — Garner town, NC (6.2 mi)
- 27593 — Wilson's Mills town, NC (6.7 mi)
- 27610 — Raleigh city, NC (10 mi)
- 27603 — Raleigh city, NC (10.6 mi)
- 27577 — Smithfield town, NC (11.1 mi)
- 27592 — Fuquay-Varina town, NC (11.6 mi)
- 27545 — Knightdale town, NC (11.9 mi)
Areas that include 27520
- Clayton, NC ZIP codes — 2 ZIP codes
- Wilson's Mills, NC ZIP codes — 4 ZIP codes
- Johnston County ZIP codes — 18 ZIP codes
- North Carolina ZIP code data
Where it ranks
- No. 3 of 16: highest median household income in Johnston County
- No. 4 of 16: highest median home value in Johnston County
Mail every home in 27520
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 27520, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 27520 in?
- 27520 is a Clayton, NC mailing address. By land area, 14% lies inside Clayton and 2% lies inside Wilson's Mills; the rest is outside any Census-defined city or community.
- What county is 27520 in?
- 27520 is in Johnston County.
- What is the population of 27520?
- About 48,014 people (±2,772), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 46,478.
- What is the median household income in 27520?
- $86,322 (±$5,212), compared with $72,388 for North Carolina as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 27520?
- 28 USPS carrier routes with 21,803 residential and 880 business mailboxes (22,683 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 27520?
- The closest, measured center to center: 27527 (6.1 mi, Archer Lodge), 27529 (6.2 mi, Garner), 27593 (6.7 mi, Wilson's Mills), 27610 (10 mi, Raleigh), 27603 (10.6 mi, Raleigh) and 27577 (11.1 mi, Smithfield).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.