{{Infobox settlement |official_name = Armstrong Township,
Lycoming County,
Pennsylvania |other_name = |native_name = |nickname = |settlement_type = Township |motto = |image_skyline = Hagermans Run Reservoir.JPG |imagesize = |image_caption = Hagermans Run Reservoir from PA Route 554, Armstrong Township |image_flag = |flag_size = |image_seal = |seal_size = |image_shield = |shield_size = |image_blank_emblem = |blank_emblem_size = |image_map = Map of Lycoming County Pennsylvania Highlighting Armstrong Township.png |mapsize = 250x200px |map_caption = Map of Lycoming County, Pennsylvania highlighting Armstrong Township |image_map1 = Map of Pennsylvania highlighting Lycoming County.svg |mapsize1 = 250x200px |map_caption1 = Map of Lycoming County, Pennsylvania |coordinates_display = inline,title |coordinates_region = US-PA |subdivision_type = Country |subdivision_name = United States |subdivision_type1 = State |subdivision_name1 = Pennsylvania |subdivision_type2 = County |subdivision_name2 = Lycoming |subdivision_type3 = |subdivision_name3 = |subdivision_type4 = |subdivision_name4 = |government_footnotes = |government_type = |leader_title = |leader_name = |leader_title1 = |leader_name1 = |leader_title2 = |leader_name2 = |leader_title3 = |leader_name3 = |leader_title4 = |leader_name4 = |established_title = Settled |established_date = 1795 |established_title2 = Formed |established_date2 = 1842 |established_title3 = |established_date3 = |area_magnitude = |unit_pref = Imperial |area_footnotes = |area_total_km2 = 66.2 |area_land_km2 = 64.8 |area_water_km2 = 1.4 |area_total_sq_mi = 25.6 |area_land_sq_mi = 25.0 |area_water_sq_mi = 0.6 |area_water_percent = 2.11% |area_urban_km2 = |area_urban_sq_mi = |area_metro_km2 = |area_metro_sq_mi = |area_blank1_title = |area_blank1_km2 = |area_blank1_sq_mi = |population_as_of = 2000 |population_footnotes = |population_note = |population_total = 717 |population_density_km2 = 28.6 |population_density_sq_mi = 11.1 |population_metro = |population_density_metro_km2 = |population_density_metro_sq_mi = |population_urban = |population_density_urban_km2 = |population_density_urban_sq_mi = |population_blank1_title = |population_blank1 = |population_density_blank1_km2 = |population_density_blank1_sq_mi = |timezone = Eastern Time Zone (North America) |utc_offset = -5 |timezone_DST = EDT |utc_offset_DST = -4 |latd = 41 |latm = 12 |lats = 17 |latNS = N |longd = 77 |longm = 1 |longs = 48 |longEW = W |elevation_footnotes = |elevation_m = 582 |elevation_ft = 1348 |postal_code_type = ZIP code |postal_code = 17702 |area_code = 570 |blank_name = FIPS code |blank_info = 42-03072