20643 ZIP Code
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ZIP code 20643 covers Ironsides, Maryland. It has no Census ZIP Code Tabulation Area, which is how the Census Bureau treats ZIP codes that are not residential neighbourhoods — PO box-only ranges, military addresses, and codes assigned to a single large organisation. There are no population or income figures for it because nobody is counted as living there.
- Time zone
- Eastern UTC-05:00observes daylight saving time
Where 20643 is
Ironsides, Maryland — the point the Postal Service gives for this ZIP code. A ZIP code is a set of delivery routes rather than an area, so this marks its centre, not its boundary.
Climate
NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.
| Weather station | QUANTICO MCAS, VA US13.2 km away |
|---|---|
| Rain in a year | 41 in |
| Snow in a year | 12 in |
Average high and low by month
| January | 44.8°F / 28.3°F2.66 in rain, 3.5 in snow |
|---|---|
| February | 48.3°F / 30.4°F2.36 in rain, 5.8 in snow |
| March | 56.3°F / 37.1°F3.58 in rain, 1.4 in snow |
| April | 67.8°F / 47.1°F3.16 in rain |
| May | 75.5°F / 56.8°F3.63 in rain |
| June | 83.7°F / 65.9°F3.53 in rain |
| July | 88°F / 70.7°F4.64 in rain |
| August | 86.1°F / 69°F4.24 in rain |
| September | 79.5°F / 62.1°F3.43 in rain |
| October | 68.8°F / 49.7°F3.33 in rain |
| November | 57.8°F / 39.3°F3.14 in rain |
| December | 48.6°F / 32.2°F3.33 in rain, 1.7 in snow |
Nearby ZIP codes
The closest ZIP codes by centre point, which is not the same as sharing a border.
| 20693 Welcome, MD | 6.2 km away |
|---|---|
| 20658 Marbury, MD | 6.7 km away |
| 20662 Nanjemoy, MD | 7.8 km away |
| 20677 Port Tobacco, MD | 9.3 km away |
| 20640 Indian Head, MD | 10.8 km away |
| 22135 Quantico, VA | 12.8 km away |
| 20646 La Plata, MD | 14.3 km away |
| 22026 Dumfries, VA | 14.3 km away |
Location, counties and time zone
County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.
| Time zone | Eastern (UTC-05:00 standard) |
|---|---|
| Daylight saving time | Observed |
| Latitude, longitude | 38.5039, -77.1483 |
Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.