Casalpusterlengo

{{Infobox Italian comune

| name = Casalpusterlengo

| official_name = Città di Casalpusterlengo

| native_name =

| image_skyline = Casalpusterlengo - panoramio.jpg

| imagesize =

| image_alt =

| image_caption = Piazza del Popolo

| image_shield = Casalpusterlengo-Stemma.png

| shield_alt =

| image_map = Map - IT - Lodi - Casalpusterlengo.png

| map_alt =

| map_caption =

| pushpin_label_position =

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| coordinates = {{coord|45|11|N|9|39|E|type:city(14,626)_region:IT|display=inline}}

| coordinates_footnotes =

| region = Lombardy

| province = Lodi (LO)

| frazioni = Borasca, Vittadone, Zorlesco

| mayor_party = Centre-Right

| mayor = Elia Dal Miglio

| area_footnotes =

| area_total_km2 = 25.61

| population_footnotes = All demographics and other statistics: Italian statistical institute Istat.

| population_total =15280

| population_as_of =31 December 2017

| pop_density_footnotes =

| population_demonym = Casalini

| elevation_footnotes =

| elevation_m = 60

| twin1 =

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| postal_code = 26841, 26829

| area_code = 0377

| website = {{official website|http://www.comune.casalpusterlengo.lo.it/}}

| footnotes =

}}

Casalpusterlengo is a comune (municipality) in the Province of Lodi in the Italian region Lombardy, located about {{convert|50|km|mi}} southeast of Milan and about {{convert|20|km|mi|0}} southeast of Lodi.

It received the honorary title of city with a presidential decree on 30 October 1975. The town has a Baroque church of Santi Bartolomeo e Martino, which was built in the 14th century but refurbished between 1602 and 1610. The town also has a communal palace and a tower from the medieval castle.

Casalpusterlengo borders the following municipalities: Turano Lodigiano, Secugnago, Brembio, Terranova dei Passerini, Codogno, Ospedaletto Lodigiano, and Somaglia.