| Mertztown, Pennsylvania | |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Pennsylvania#USA |
| Pushpin Label: | Mertztown |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Berks |
| Subdivision Type3: | Township |
| Subdivision Name3: | Longswamp Township |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 2.74 |
| Area Land Km2: | 2.72 |
| Area Water Km2: | 0.01 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 600 |
| Population Density Km2: | 220.24 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 466 |
| Coordinates: | 40.5058°N -75.6656°W |
| Postal Code Type: | ZIP Code |
| Postal Code: | 19539 |
| Area Code: | 610 and 484 |
| Blank Name: | FIPS code |
| Blank Info: | 42-48824 |
| Blank1 Name: | GNIS feature ID |
| Area Total Sq Mi: | 1.06 |
| Area Land Sq Mi: | 1.05 |
| Area Water Sq Mi: | 0.00 |
| Population Density Sq Mi: | 570.34 |
Mertztown is a census-designated place[3] in Longswamp Township in Berks County, Pennsylvania. It is located near the borough of Topton. As of the 2010 census, the population was 664 residents.[4]
Mertztown is located in Berks County at latitude 40.506 and longitude -75.665. Its elevation is 466 feet. It appears on the United States Geological Survey map for Topton and is in the Eastern Time Zone (UTC-5).
The Reading Railroad which ran through Mertztown, was later acquired by Norfolk Southern as the Reading Line, and remains a heavily used railroad branch. A branch of the Catasauqua and Fogelsville Railroad once passed through the Farmington and Klines Corner section in Mertztown, but the tracks were later removed.
Mertztown was founded in 1823 by Robert Mertz. The population density is .01% Black, .01% Hispanic or other, and 99.8% white. Atlas Minerals, a major mineral company, is located in Mertztown. The company, which moved to Mertztown in 1917, has been based there ever since.
Mertztown is served by Brandywine Heights Area School District, which is based in Mertztown. Gateway Christian School is also located in Mertztown. The area code is 610. The Toad Creek runs east through the village from Topton into the Little Lehigh Creek.