  {{infobox settlement |official_name = city of atascadero |other_name = |native_name = |nickname = a-town |settlement_type = city |image_skyline = |imagesize = |image_caption = old city hall and sunken gardens in atascadero, ca |image_seal = the great seal of the city of atascadero, ca.jpg |image_map = san_luis_obispo_county_california_incorporated_and_unincorporated_areas_atascadero_highlighted.svg |mapsize = 250x200px |map_caption = location in san luis obispo county and the state of california |image_map1 = |mapsize1 = |map_caption1 = |pushpin_map = |pushpin_label_position = |pushpin_map_caption = |pushpin_mapsize = |latd = 35 |latm = 29 |lats = 3 |latns = n |longd = 120 |longm = 40 |longs = 21 |longew = w |coordinates_display = inline,title |coordinates_region = us-ca |subdivision_type = country |subdivision_name = united states |subdivision_type1 = state |subdivision_name1 = california |subdivision_type2 = county |subdivision_name2 = san luis obispo |government_footnotes = |government_type = |leader_title = |leader_name = |leader_title1 = |leader_name1 = |established_title = incorporated |established_date = july 2, 1979 |unit_pref = us |area_footnotes =  |area_total_sq_mi = 26.130 |area_total_km2 = 67.675 |area_land_sq_mi = 25.641 |area_land_km2 = 66.409 |area_water_sq_mi = 0.489 |area_water_km2 = 1.265 |area_water_percent = 1.87 |elevation_footnotes =  |elevation_ft = 879 |elevation_m = 268 |population_as_of = 2010 |population_footnotes = |population_note = |population_total = 28310 |population_density_sq_mi = auto |timezone = pacific (pst) |utc_offset = -8 |timezone_dst = pdt |utc_offset_dst = -7 |postal_code_type = zip codes |postal_code = 93422â93423 |area_code = 805 |blank_name = fips code |blank_info =  |blank1_name = gnis feature ids |blank1_info = , {
Cities_in_San_Luis_Obispo_County,_California Incorporated_cities_and_towns_in_California Populated_places_established_in_1913