Postal Code Finder
Registry / United States / ZIP Code prefixes / 20 / 20878 /

ZIP Code 20878 — Gaithersburg, Maryland

📍 What is My Postal Code?

Postal code 20878 covers 1 verified locality record in United States with interactive boundary centroid map and administrative hierarchy.

VERIFIED QUICK ANSWER & ADDRESS FORMAT 📏 Calculate Distance & Mail Time from 20878 →
County / Jurisdiction
Montgomery County
State & Primary City
Gaithersburg, Maryland (United States)
📦 How to Write a Mailing Address for 20878 
JANE DOE
123 MAIN ST APT 4B
GAITHERSBURG, MARYLAND 20878
UNITED STATES

Mapped Localities for 20878

1 Place
Gaithersburg
20878
Maryland · Montgomery
📍 39.1125, -77.2515

Interactive Map: 20878 (United States)

Geographic Centroid & Coverage: Highlighted marker and radius show the verified WGS84 postal area centroid for 20878.

Technical Geodesic & Postal Specifications for 20878

Postal Identifier 20878
Primary Locality Gaithersburg
WGS84 Centroid Coordinates 39.1125, -77.2515
Postal Prefix Sector20xx → Browse prefix 20
Time Zone (Standard)UTC-5 (Solar / Geodesic)
Geodesic Quadrant39.1125° N, 77.2515° W (WGS84)
Open Location Code (Plus Code)87F44P7X+2C
UTM Grid Coordinates (WGS84)18S 305337m E, 4331675m N
Solar Daylight Today (UTC)🌅 11:25 UTC  ·  🌇 22:22 UTC
Distance from Your Location

Nearby postal code lookups in United States

Compare 20878 with adjacent postal codes in the same area or prefix range:

20874 📍 3.7 km · 2.3 mi
Germantown
20813 📍 5.2 km · 3.2 mi
Bethesda
20827 📍 5.2 km · 3.2 mi
Bethesda
20848 📍 5.2 km · 3.2 mi
Rockville
20859 📍 5.2 km · 3.2 mi
Potomac
20850 📍 7.7 km · 4.8 mi
Rockville
20847 📍 9.1 km · 5.7 mi
Rockville
20849 📍 9.1 km · 5.7 mi
Rockville

Postal code prefix range: 20

Postal code 20878 belongs to the 20 prefix district in United States.

View all 20 postal codes → United States Directory

Verified data profile for ZIP Code 20878

Based on 1 records, 1 postal code values and 1 mapped localities. Coordinate coverage is 100.0%.

1
Records
1
Postal identifiers
100.0%
Geocoded
20878
Example code
Postal code Locality Administrative path Coordinates
20878 Gaithersburg Maryland / Montgomery 39.1125, -77.2515

Related postal lookups

United States
Country
ZIP Code prefixes
Postal code prefixes
Prefix 20
Postal code range · 577 records
20874
Nearby postal code · 1 records
20813
Nearby postal code · 1 records
20827
Nearby postal code · 1 records
20848
Nearby postal code · 1 records
20859
Nearby postal code · 1 records
20850
Nearby postal code · 1 records
📍 Interactive Postal Code Tools, UPU S42 Address Validator & Country Hubs
Find your exact postal code via GPS, calculate distance & delivery times, or validate postcodes and international address formats.
📍 Find My Postal Code 📏 Distance & Mail Time ✅ Validate Code & Address Format
🏙️ Major Cities Directory → 🔢 Postal Code Prefixes → 🗺️ Country Overview →