Mount Gretna is located in Pennsylvania. Mount Gretna, Pennsylvania has a population of 205. Mount Gretna is less family-centric than the surrounding county with 6% households with children. The county percentage for households with children is 26%.
The median household income in Mount Gretna, Pennsylvania is $77,262. The median household income for the surrounding county is $61,612 compared to the national median of $66,222. The median age of people living in Mount Gretna is 67.7 years.
The average high temperature in July is 83.2 degrees, with an average low temperature in January of 19.1 degrees. The annual precipitation is 43.69.
| Grades | Students | P/T Ratio | ZIP | |
|---|---|---|---|---|
| Baron Elementary School | PK - 04 | 350 | 13.2 | 17545 |
| Cleona Elementary School | KG - 02 | 302 | 13.8 | 17042 |
| Cornwall Elementary School | KG - 05 | 541 | 14.6 | 17042 |
| Doe Run Elementary School | KG - 04 | 672 | 13.9 | 17545 |
| Forge Road Elementary School | 01 - 05 | 341 | 12.9 | 17078 |
| Harding Elementary School | PK - 05 | 555 | 14 | 17042 |
| Lingle Avenue Elementary School | KG - 05 | 547 | 15.5 | 17078 |
| Northside Elementary School | 01 - 05 | 229 | 13.1 | 17078 |
| Pine Street Elementary School | 01 - 05 | 342 | 14.5 | 17078 |
| South Lebanon Elementary School | KG - 05 | 554 | 14 | 17042 |
| Southeast Elementary School | PK - 05 | 438 | 15.7 | 17042 |
| Southwest Elementary School | PK - 05 | 390 | 14.6 | 17042 |
| Grades | Students | P/T Ratio | ZIP | |
|---|---|---|---|---|
| Cedar Crest Middle School | 06 - 08 | 1,224 | 17.3 | 17042 |
| Lebanon Junior High School | 07 - 08 | 693 | 14.7 | 17042 |
| Manheim Central Middle School | 05 - 08 | 846 | 12.6 | 17545 |
| Palmyra Area Middle School | 06 - 08 | 820 | 13.5 | 17078 |
| Grades | Students | P/T Ratio | ZIP | |
|---|---|---|---|---|
| Cedar Crest High School | 09 - 12 | 1,676 | 15.8 | 17042 |
| Lebanon Senior High School | 09 - 12 | 1,393 | 16.2 | 17042 |
| Manheim Central Senior High School | 09 - 12 | 896 | 14.4 | 17545 |
| Palmyra Area Senior High School | 09 - 12 | 1,126 | 15.1 | 17078 |
| City | County | |
|---|---|---|
| Population | 205 | 143,157 |
| Population Density | 1,425 | 396 |
| Median Age | 67.7 | 42.6 |
| People per Household | 1.9 | 2.5 |
| Median Household Income | 77,262 | 61,612 |
| Average Income per Capita | 52,184 | 30,131 |
Copyright © 2026 Bright MLS Inc. 
Website designed by Constellation1, a division of Constellation Web Solutions, Inc.
