28660 ZIP Code, Olin, NC
28660 is a ZIP code in Olin, North Carolina in Iredell County. It covers 32 square miles of land. The closest ZIP codes are 28634, 28689 and 28625. 2,501 people live here in 888 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (67% own). Median household income is $77,278, close to the North Carolina median of $72,388.
Quick facts
- Mailing city: Olin, NC
- County: Iredell County
- Land area: 32 sq mi
- Population: 2,501
- Median household income: $77,278
- Carrier routes: 2 (929 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 2,501 |
| Households | 888 |
| Median household income | $77,278 |
| Income per person | $28,163 |
| Median age | 30.8 |
| Homeowners | 67.1% |
| Median home value | $216,100 |
| Median rent | $1,073 |
| Bachelor's degree or higher | 5.6% |
| Average commute (minutes) | 26.4 |
| Households with kids under 18 | 33.1% |
| Moved in the past year | 11.7% |
| Below the poverty line | 20.2% |
| Broadband internet | 90.1% |
| Speak a non-English language at home | 4.9% |
Household income
| % of households | Value |
|---|---|
| <$10K | 4.8% |
| $10–15K | 2.9% |
| $15–25K | 8.1% |
| $25–35K | 2.8% |
| $35–50K | 3.8% |
| $50–75K | 22.9% |
| $75–100K | 23.2% |
| $100–150K | 28.2% |
| $150–200K | 0.9% |
| $200K+ | 2.4% |
Age
| % of all residents | Value |
|---|---|
| <10 | 18.0% |
| 10–19 | 10.9% |
| 20–24 | 7.4% |
| 25–34 | 15.3% |
| 35–44 | 7.7% |
| 45–54 | 5.8% |
| 55–64 | 15.9% |
| 65–74 | 9.6% |
| 75+ | 9.6% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 29.6% |
| Owned outright | 27.8% |
| Rented | 27.5% |
| Vacant | 15.1% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 57.7% |
| Townhome | 0.0% |
| 2–4 units | 0.0% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 42.3% |
Businesses in 28660
31 business establishments with 962 employees (ZIP Codes Business Patterns 2023).
- Construction: 13
- Transportation and Warehousing: 4
- Professional, Scientific, and Technical Services: 3
EDDM carrier routes
28660 has 2 USPS carrier routes with 929 residential and 15 business mailboxes. Open the EDDM route map.
Carrier routes in 28660
28660 has 2 USPS carrier routes (2 rural (R)) with 929 residential and 15 business mailboxes. Routes range from 281 homes (R092) to 648 homes (R091); the median route has 465 homes. The Census counted 888 households in 28660 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 1 |
| 500–749 | 1 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 28660 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R092 — USPS business mailboxes 9, 281 homes
- Route R091 — USPS business mailboxes 6, 648 homes
Select these 2 routes on the route map
Every carrier route in 28660
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| R091 | Rural | 648 | 6 | $60,759 | — | — | — |
| R092 | Rural | 281 | 9 | $60,759 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 28660 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
- 28634 — Harmony town, NC (5.5 mi)
- 28689 (6.7 mi)
- 28625 — Statesville city, NC (7.1 mi)
- 27020 (10.3 mi)
- 28636 — Hiddenite CDP, NC (11.8 mi)
- 28678 — Stony Point CDP, NC (15.3 mi)
- 28670 — Ronda town, NC (15.9 mi)
- 27055 — Yadkinville town, NC (16.1 mi)
Areas that include 28660
- Olin, NC ZIP codes — 1 ZIP code
- Iredell County ZIP codes — 11 ZIP codes
- North Carolina ZIP code data
Where it ranks
- No. 4 of 11: highest median household income in Iredell County
- No. 2 of 11: highest share of residents who moved in during the past year in Iredell County
- No. 1 of 11: lowest median age in Iredell County
- No. 4 of 11: fastest population growth in Iredell County
Mail every home in 28660
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) 28660, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 28660 in?
- 28660 is a Olin, NC mailing address. None of its land lies inside a Census-defined city or community.
- What county is 28660 in?
- 28660 is in Iredell County.
- What is the population of 28660?
- About 2,501 people (±746), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 2,289.
- What is the median household income in 28660?
- $77,278 (±$23,539), 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 28660?
- 2 USPS carrier routes with 929 residential and 15 business mailboxes (944 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 28660?
- The closest, measured center to center: 28634 (5.5 mi, Harmony), 28689 (6.7 mi), 28625 (7.1 mi, Statesville), 27020 (10.3 mi), 28636 (11.8 mi, Hiddenite) and 28678 (15.3 mi, Stony Point).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.