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Where 19977 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 19977 into a pocket calculator and turn it upside down: LLGGI — not quite a word, sorry.
- ➕ As a number, 19,977 = 3 × 6659. Its digits add up to 33, a total 456 other ZIP codes share.
- 💾In binary, the way a computer stores it:
100111000001001 - 🏠 Its numerical neighbours: 19975 (Selbyville, DE, 61 mi away) and 19979 (Viola, DE, 17 mi away).
- 🔄 Backwards, 19977 becomes 77991 — and that is a real ZIP code: Vanderbilt, TX, 1,402 miles away.
- 👥 7 other ZIP codes are made of exactly the same digits (17979, 77991, 79719, 79917, 91977, 97917, …). The farthest-flung twin is 99771 in Shaktoolik, AK, 3,689 miles away.
- 🧭 Farther north than 51% of all ZIP codes, and farther east than 86%.
- 🎯1,224 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 19977 and you would come out at 39.30°S, 104.45°E — 816 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 56m of daylight. Shortest: 9h 24m.
- 📏 At 83.1 square miles of land, 19977 is bigger than 73% of ZIP codes — room for about 63 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 27,704This ZIP27,704 |
|---|---|
| Households | 9,322This ZIP9,322 |
| Housing units | 10,048This ZIP10,048 |
| Median age | 38.1This ZIP38.1Delaware41.6US 38.9 |
| Median household income | $76,826This ZIP$76,826Delaware$84,954US $80,734 |
| Median home value | $341,000This ZIP$341,000Delaware$352,000US $332,700 |
| Median gross rent | $1,468This ZIP$1,468Delaware$1,401US $1,413 |
| Bachelor's degree or higher | 23.4%This ZIP23.4% |
| Mean commute | 32.8 minThis ZIP32.8 min |
| Population density | 333.4 / sq miThis ZIP333.4 / sq mi |
Business and tax activity
| Business establishments | 391This ZIP391 |
|---|---|
| Employees | 5,291This ZIP5,291 |
| Annual payroll | $245,643,000This ZIP$245,643,000 |
| Tax returns filed | 13,150This ZIP13,150 |
| Total adjusted gross income | $913,788,000This ZIP$913,788,000 |
Land area
| Land area | 83.11 sq miThis ZIP83.11 sq mi |
|---|---|
| Water area | 5.38 sq miThis ZIP5.38 sq mi |
Counties 19977 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Kent County | 77.6% |
| New Castle County | 22.4% |
Other place names in 19977
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 19977
| ZIP | City | Distance |
|---|---|---|
19936 | Cheswold, DE | 5.9 mi |
19955 | Kenton, DE | 8.1 mi |
19734 | Townsend, DE | 8.1 mi |
19938 | Clayton, DE | 8.7 mi |
19901 | Dover, DE | 9.0 mi |
19904 | Dover, DE | 9.1 mi |
19905 | Dover, DE | 9.8 mi |
19906 | Dover, DE | 9.8 mi |
19961 | Little Creek, DE | 10.6 mi |
08323 | Greenwich, NJ | 11.7 mi |
Find every ZIP code within 10 miles of 19977 →
Questions about this ZIP code
Where is ZIP code 19977?
19977 is in Smyrna, Delaware, in Kent County, part of the Dover, DE metropolitan area. Its published point location is 39.2989, -75.5461.
What county is 19977 in?
19977 spans 2 counties: Kent County and New Castle County. Most of it falls in Kent 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 19977?
Smyrna uses area code 302, from NANPA's telephone records.
What time zone is 19977 in?
19977 uses America/New_York.
How many people live in 19977?
About 27,704 people live in ZIP code 19977, in 9,322 households, at 333.4 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 19977?
$76,826 a year, against $84,954 across Delaware.
What ZIP codes are near 19977?
The closest are 19936 (5.9 mi), 19955 (8.1 mi), 19734 (8.1 mi), 19938 (8.7 mi) and 19901 (9 mi).
Is 19977 a PO Box ZIP code?
19977 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “19977 ZIP Code — Smyrna, Delaware (Kent County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/19977
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/19977.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.