| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
2501  | Solarolo  Solarolo,soraroro,ソラローロ | Italy, Emilia-Romagna Province of Ravenna > Solarolo | seat of a third-order administrative division population 3,045, elevation 25m | N 44° 21′ 32'' | E 11° 50′ 47'' |
| 2502 | Solagna Solagna | Italy, Veneto Province of Vicenza > Solagna | seat of a third-order administrative division population 1,659, elevation 131m | N 45° 49′ 10'' | E 11° 43′ 4'' |
| 2503 | Sogliano Cavour Sogliano Cavour | Italy, Apulia Provincia di Lecce > Sogliano Cavour | seat of a third-order administrative division population 3,823, elevation 75m | N 40° 8′ 53'' | E 18° 11′ 50'' |
| 2504 | Soave Soave,soavue,ソアーヴェ | Italy, Veneto Province of Verona > Soave | seat of a third-order administrative division population 5,035, elevation 40m | N 45° 25′ 10'' | E 11° 14′ 45'' |
| 2505 | Schluderns Schledurus,Schluderns,Sluderno,zuruderuno,ズルデルノ | Italy, Trentino-Alto Adige South Tyrol > Schluderns | seat of a third-order administrative division population 1,611, elevation 921m | N 46° 39′ 54'' | E 10° 35′ 0'' |
| 2506 | Sizzano Sizzano | Italy, Piedmont Province of Novara > Sizzano | seat of a third-order administrative division population 1,308, elevation 225m | N 45° 34′ 35'' | E 8° 26′ 10'' |
| 2507 | Siziano Siziano | Italy, Lombardy Province of Pavia > Siziano | seat of a third-order administrative division population 5,244, elevation 93m | N 45° 18′ 57'' | E 9° 12′ 12'' |
| 2508 | Siusi Scis,Seis am Schlern,Siusi,Siusi allo Sciliar | Italy, Trentino-Alto Adige South Tyrol > Castelrotto/Kastelruth | populated place population 1,636, elevation 1000m | N 46° 32′ 28'' | E 11° 33′ 31'' |
| 2509 | Sirolo Sirolo,shiroro,シローロ | Italy, The Marches Province of Ancona > Sirolo | seat of a third-order administrative division population 2,545, elevation 125m | N 43° 31′ 20'' | E 13° 36′ 53'' |
| 2510 | Sirmione Sermione,Sirmione,Сирмионе | Italy, Lombardy Province of Brescia > Sirmione | seat of a third-order administrative division population 6,818, elevation 66m | N 45° 29′ 50'' | E 10° 36′ 18'' |
| 2511 | Siniscola Siniscola | Italy, Sardinia Province of Nuoro > Siniscola | seat of a third-order administrative division population 8,119, elevation 19m | N 40° 34′ 24'' | E 9° 41′ 49'' |
| 2512 | Sindia Sindia | Italy, Sardinia Province of Nuoro > Sindia | seat of a third-order administrative division population 1,801, elevation 510m | N 40° 17′ 42'' | E 8° 39′ 25'' |
| 2513 | Silvi Silvi | Italy, Abruzzo Province of Teramo > Silvi | seat of a third-order administrative division population 12,551, elevation 2m | N 42° 32′ 59'' | E 14° 7′ 3'' |
| 2514 | Silvano d'Orba Silvano,Silvano d'Orba | Italy, Piedmont Province of Alessandria > Silvano d'Orba | seat of a third-order administrative division population 1,524, elevation 175m | N 44° 41′ 8'' | E 8° 40′ 18'' |
| 2515 | Sillano Silana,Silano,Sillano,Sillanu,Syllanum,shirrano,xi la nuo,Силано,Силлано,Сілана,Сіллано,Սիլանո,シッラーノ... | Italy, Tuscany Province of Lucca > Sillano Giuncugnano | seat of a third-order administrative division population 352, elevation 735m | N 44° 13′ 22'' | E 10° 18′ 8'' |
| 2516 | Silea Silea | Italy, Veneto Province of Treviso > Silea | seat of a third-order administrative division population 6,077, elevation 7m | N 45° 39′ 16'' | E 12° 17′ 49'' |
| 2517 | Silanus Silanus | Italy, Sardinia Province of Nuoro > Silanus | seat of a third-order administrative division population 2,092, elevation 432m | N 40° 17′ 13'' | E 8° 53′ 31'' |
| 2518 | Sicignano degli Alburni Sicignano degli Alburni | Italy, Campania Province of Salerno > Sicignano degli Alburni | seat of a third-order administrative division population 1,310, elevation 610m | N 40° 33′ 31'' | E 15° 18′ 20'' |
| 2519 | Siano Siano | Italy, Campania Province of Salerno > Siano | seat of a third-order administrative division population 9,855, elevation 126m | N 40° 48′ 7'' | E 14° 41′ 36'' |
| 2520 | Sgonico Sgonico,Zgonik,zugoniko,ズゴニーコ | Italy, Friuli Venezia Giulia Trieste > Sgonico-Zgonik | seat of a third-order administrative division population 200, elevation 278m | N 45° 44′ 9'' | E 13° 44′ 49'' |
2521  | Sforza Castle Castel Sforsesch ed Milan,Castel Sforsesch ëd Milan,Castell Sforzesch de Milan,Castell Sforzesco,Cas... | Italy, Lombardy Province of Milan > Milan > Municipio 1 | castle | N 45° 28′ 11'' | E 9° 10′ 48'' |
| 2522 | Sestri Ponente Segesta Occidentalis,Sestri Ponente,sstry bwnnth,xi sai si te li,Сестри Поненте,سستري بوننته,セストリ・ポネ... | Italy, Liguria Province of Genoa > Genova | section of populated place | N 44° 25′ 33'' | E 8° 50′ 54'' |
| 2523 | Sesto ed Uniti Sesto ed Uniti | Italy, Lombardy Province of Cremona > Sesto ed Uniti | seat of a third-order administrative division population 2,808 | N 45° 10′ 35'' | E 9° 54′ 50'' |
| 2524 | Sesto Calende Sesto Calende | Italy, Lombardy Province of Varese > Sesto Calende | seat of a third-order administrative division population 8,434, elevation 198m | N 45° 43′ 33'' | E 8° 38′ 2'' |
| 2525 | Sessa Aurunca Sessa Aurunca,Suessa | Italy, Campania Province of Caserta > Sessa Aurunca | seat of a third-order administrative division population 5,269, elevation 203m | N 41° 14′ 23'' | E 13° 55′ 46'' |
| 2526 | Servigliano Servigliano | Italy, The Marches Province of Fermo > Servigliano | seat of a third-order administrative division population 1,431, elevation 215m | N 43° 4′ 47'' | E 13° 29′ 33'' |
| 2527 | Serre di Rapolano Serre,Serre di Rapolano | Italy, Tuscany Province of Siena > Rapolano Terme | populated place population 1,492, elevation 350m | N 43° 15′ 23'' | E 11° 36′ 59'' |
| 2528 | Serre Serre | Italy, Campania Province of Salerno > Serre | seat of a third-order administrative division population 2,075, elevation 200m | N 40° 34′ 57'' | E 15° 11′ 8'' |
| 2529 | Serravalle Sesia Serravalle Sesia | Italy, Piedmont Province of Vercelli > Serravalle Sesia | seat of a third-order administrative division population 4,656, elevation 313m | N 45° 41′ 5'' | E 8° 18′ 30'' |
| 2530 | Serravalle Scrivia Serravalle Libarna,Serravalle Scrivia | Italy, Piedmont Province of Alessandria > Serravalle Scrivia | seat of a third-order administrative division population 5,672, elevation 225m | N 44° 43′ 22'' | E 8° 51′ 22'' |
| 2531 | Serra San Quirico Serra San Quirico,セッラ・サン・クイーリコ | Italy, The Marches Province of Ancona > Serra San Quirico | seat of a third-order administrative division population 1,780, elevation 300m | N 43° 26′ 46'' | E 13° 1′ 21'' |
| 2532 | Serra Riccò A Sǽra,Serra Ricco,Serra Riccò,Serra Rocco | Italy, Liguria Province of Genoa > Serra Riccò | seat of a third-order administrative division population 7,879 | N 44° 30′ 38'' | E 8° 56′ 17'' |
| 2533 | Serrara Fontana Serrara Fontana,セッラーラ・フォンターナ | Italy, Campania Naples > Serrara Fontana | seat of a third-order administrative division population 1,697, elevation 366m | N 40° 42′ 53'' | E 13° 53′ 45'' |
| 2534 | Serrano Serrano | Italy, Apulia Provincia di Lecce > Carpignano Salentino | populated place population 1,334, elevation 100m | N 40° 11′ 3'' | E 18° 21′ 5'' |
| 2535 | Serra de' Conti Serra de' Conti,Serra de'Conti,セッラ・デ・コンティ | Italy, The Marches Province of Ancona > Serra de' Conti | seat of a third-order administrative division population 1,973, elevation 216m | N 43° 32′ 31'' | E 13° 2′ 8'' |
| 2536 | Serracapriola Serracapriola | Italy, Apulia Provincia di Foggia > Serracapriola | seat of a third-order administrative division population 3,652, elevation 270m | N 41° 48′ 32'' | E 15° 9′ 39'' |
| 2537 | Sernaglia della Battaglia Sernaglia della Battaglia | Italy, Veneto Province of Treviso > Sernaglia della Battaglia | seat of a third-order administrative division population 3,869, elevation 117m | N 45° 52′ 17'' | E 12° 7′ 58'' |
| 2538 | Sermoneta Sermoneta,serumoneta,セルモネータ | Italy, Lazio Provincia di Latina > Sermoneta | seat of a third-order administrative division population 1,066, elevation 257m | N 41° 32′ 57'' | E 12° 59′ 5'' |
| 2539 | Sermide Sermide,Сермиде | Italy, Lombardy Province of Mantua > Sermide e Felonica | seat of a third-order administrative division population 3,599, elevation 12m | N 45° 0′ 12'' | E 11° 17′ 34'' |
| 2540 | Serle Serle,serure,セルレ | Italy, Lombardy Province of Brescia > Serle | seat of a third-order administrative division population 2,154, elevation 493m | N 45° 33′ 40'' | E 10° 22′ 5'' |
| 2541 | Serino Serino | Italy, Campania Province of Avellino > Serino | seat of a third-order administrative division population 7,041 | N 40° 51′ 17'' | E 14° 52′ 20'' |
| 2542 | Sergnano Sergnano | Italy, Lombardy Province of Cremona > Sergnano | seat of a third-order administrative division population 3,467, elevation 91m | N 45° 25′ 39'' | E 9° 42′ 4'' |
| 2543 | Seravezza Seravezza | Italy, Tuscany Province of Lucca > Seravezza | seat of a third-order administrative division population 1,194, elevation 50m | N 43° 59′ 40'' | E 10° 13′ 37'' |
| 2544 | Sennori Sennori | Italy, Sardinia Province of Sassari > Sennori | seat of a third-order administrative division population 6,855, elevation 277m | N 40° 47′ 16'' | E 8° 35′ 34'' |
| 2545 | Senna Lodigiana Senna Lodigiana,センナ・ロディジャーナ | Italy, Lombardy Province of Lodi > Senna Lodigiana | seat of a third-order administrative division population 1,236, elevation 62m | N 45° 9′ 0'' | E 9° 35′ 37'' |
| 2546 | Senise Senise | Italy, Basilicate Province of Potenza > Senise | seat of a third-order administrative division population 6,243, elevation 335m | N 40° 8′ 46'' | E 16° 17′ 19'' |
| 2547 | Seniga Seniga,seniga,セニーガ | Italy, Lombardy Province of Brescia > Seniga | seat of a third-order administrative division population 1,234, elevation 48m | N 45° 14′ 41'' | E 10° 10′ 39'' |
| 2548 | Seneghe Seneghe | Italy, Sardinia Province of Oristano > Seneghe | seat of a third-order administrative division population 1,840, elevation 305m | N 40° 4′ 52'' | E 8° 36′ 48'' |
| 2549 | Senago | Italy, Lombardy Province of Milan > Senago | seat of a third-order administrative division population 20,620, elevation 176m | N 45° 34′ 32'' | E 9° 7′ 34'' |
| 2550 | Selvino Selvino | Italy, Lombardy Province of Bergamo > Selvino | seat of a third-order administrative division population 1,984, elevation 960m | N 45° 47′ 6'' | E 9° 45′ 10'' |
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