Top 100

A hitlist? Most prolific localities? Why? Is this useful? Is it fun? It's statistics...
(see our forum for discussions on what a "locality" is)
(list is indexed on "IMA valid minerals" ; TL=type locality (UM's + FF/FRL's count as TL)
(list made in 2008: last changed: 28 november 2019)

1-10
643 - Lavrion - 50 TL's (forum)
529 - Khibiny (Kukisvumchorr/Yukspor) - 132 TL's
443 - Clara - 33 TL's (forum)
430 - Mont Saint Hilaire - 81 TL's (forum)
424 - (Eifel volcanic region - 56 TL's (forum))
        (mindat says 405 minerals, but it's 424 minerals, see here...
393 - Lovozero (Karnasurt/Alluayv) - 120 TL's
382 - Franklin/Sterling Hill - 87 TL's (forum)
351 - Jachymov - 62 TL's (forum)
329 - Broken Hill - 26 TL's
316 - Tsumeb - 76 TL's (forum)

11-20
302 - Langban - 81 TL's (forum)
300 - Pribram - 15 TL's (forum)
293 - Schneeberg - 37 TL's (forum)
293 - Bellerberg - 23 TL's (forum)
        (mindat says 227 minerals, but it's 290+ minerals, see here...
286 - Bisbee - 7 TL's
270 - Vesuvius/Mte.Somma/Phlegrean Volcanic Complex - 66 TL's (forum)
268 - Tintic - 17 TL's
247 - Tolbachik - 126 TL's
247 - Hüttenberg - 17 TL's
240 - Bou Azer - 9 TL's (forum)

21-50
232 - Ilimaussaq - 45 TL's (forum)
231 - Caldbeck Fells - 1 TL
227 - Katanga Copper Crescent - 65 TL's (forum)
218 - Larvik plutonic complex - 30 TL's
217 - Mt.Isa-Cloncurry - 3 TL's
214 - Kovdor - 27 TL's
213 - Ronneburg - 1 TL
212 - St.Andreasberg - 7 TL's
209 - Bad Ems - 3 TL's (forum)
207 - Banska Stiavnica - 0 TL's (forum)
206 - Hagendorf - 26 TL's
196 - Hatrurim - 29 TL's
195 - Zeehan - 5 TL's (forum)
194 - Wittichen - 18 TL's (forum)
194 - Freiberg - 14 TL's (forum)
190 - Dalnegorsk-Kavalerovo - 1 TL's
187 - Val Graveglia, Gambatesa-Molinello-Cassagna - 18 TL's (forum)
186 - Schwaz-Brixlegg - 5 TL's (forum)
183 - Ste Marie aux Mines - 11 TL's
183 - Sta Eulalia - 0 TL's
182 - Horni Slavkov - 9 TL's
175 - Skelleftea - 6 TL's
174 - Kalahari (Wessels/N'Chwaning) - 26 TL's
172 - Norilsk - 64 TL's
169 - Gold Hill - 3 TL's
166 - Chelyabinsk - 16 TL's
166 - Lengenbach-Turtschi dolomite outcrops - 47 TL's (forum)
164 - Crestmore - 10 TL's
164 - Iron Monarch - 6 TL's
161 - Foote - 15 TL's
156 - Palermo n.1 - 15 TL's
156 - Ehrenfriedersdorf - 5 TL's (forum)

ranking 51-100: but still very special and famous ;-)
154 - Clear Creek/New Idrija - 21 TL's
154 - Vielsalm-Ottre-Bihain - 6 TL's (forum)
154 - Coldwell complex - 4 TL
154 - Marienberg - 3 TL's (forum)
154 - Zlata Bana - 0 TL's
153 - Goldstrike - 0 TL's
151 - Richelsdorf - 5 TL's (forum)
151 - Rudabanya - 1 TL's
150 - Nordmark - 9 TL's
149 - Johanngeorgenstadt - 10 TL's (forum)
145 - Agnes districts - 4 TL's
144 - Harstigen - 14 TL's
143 - Ramsbeck - 3 TL's (forum)
142 - Dara-i-Pioz - 42 TL's
142 - Silver Coin - 8 TL's
141 - Clausthal-Zellerfeld - 3 TL's
140 - Galileia - 12 TL's
139 - Moctezuma/Bambolla/Bambollita - 26 TL's
139 - Ojuela - 6 TL's (forum)
138 - Zalesi u Javornika - 9 TL's
137 - Leogang - 3 TL's (forum)
137 - Carajas - 0 TL's
134 - Chuquicamata - 19 TL's (forum)
133 - Fossa / Volcano - 39 TL's (forum)
133 - Cervandone- Scherbadung region - 8 TL's (forum)
131 - Cap Garonne - 16 TL's (forum)
130 - Laacher See complex - 7 TL's (forum)
129 - Kombat - 18 TL's
129 - Demix-Varennes - 3 TL's
128 - Wildermann - 0 TL's (forum)
126 - Bayan Obo - 18 TL's (forum)
126 - Kawazu - 3 TL's (forum)
126 - Kremnitz - 0 TL's
125 - Liberec - 0 TL's
123 - Carrara - 2 TL's (forum)
123 - Redziny - 0 TL's
121 - Silberbrunnle - 4 TL's
121 - Mt. Bischoff - 0 TL's
121 - Montmins - 0 TL's (forum)
120 - Menzenschwand - 8 TL's (forum)

ranking 101 and up: here are the most interesting ;)
113 - Viitaniemi pegmatite - 2 TL's
113 - Bärensteinbruch - 0 TL's
112 - Jeffrey mine, Asbestos - 4 TL's (forum)
112 - Chessy - 2 TL's (forum)
111 - Siglo XX - 6 TL's
111 - Gold Quarry mine - 2 TL's
111 - Klöch - 1 TL (forum)
111 - Steinerleinbach - 0 TL's (forum)
110 - Kara Oba - 4 TL's
109 - Thelenberg - 0 TL's
109 - Penberthy Croft - 3 TL's
108 - Mammoth - 10 TL's
107 - Brosso - 1 TL (forum)
106 - Bendada - 1 TL (forum)
106 - Oberschulenberg - 1 TL (forum)
105 - Aris - 15 TL's
105 - Palhal - 0 TL's
104 - Dunton gem quarry - 4 TL's
102 - Pöhla - 0 TL's
102 - Annaberg - 2 TL's (forum)
102 - Majuba Hill - 2 TL's
101 - Magdalena district - 0 TL's
099 - Creusa-Marécottes - 2 TL's (forum)
098 - Löhley - 5 TL's
098 - Buranga pegmatite - 3 TL's
098 - Moldava - 1 TL
098 - Grube Brüderbund - 0 TL's
097 - TipTop - 12 TL's (forum)
097 - Silver Coin / Iron Point district - 8 TL's
095 - Sapucaia pegmatites - 8 TL's
095 - Mines de Costabonne - 0 TL's
094 - Bernic lake, Tango pegmatites - 8 TL's
094 - Baveno - 5 TL's (forum)
092 - Sitio do Castelo aka Folgosinho - 1 TL (forum)
091 - Rothenberg - 3 TL's
091 - Strickland pegmatite - 0 TL's
089 - Otto mountain - 14 TL's
088 - Ivittuut - 19 TL's
088 - Kongsberg - 1 TL's (forum)
082 - Felbertal-Mittersill - 8 TL's (forum)
081 - Fuka - 12 TL's
081 - Smolnik - 3 TL's
081 - Rother Kopf - 3 TL's (forum)
080 - Blue Lizard - 15 TL's
079 - Khaidarkan - 9 TL's
078 - Francon Quarry - 10 TL's
077 - Karatau V-mines - 11 TL's
077 - Emmelberg - 0 TL's
076 - Graulai - 3 TL's (forum)
076 - Moschellandsberg - 6 TL's
075 - Riddarhyttan-Bastnäs - 10 TL's
074 - Nickenicher (Eicher) Sattel - 2 TL's
073 - Buca della Vena - 12 TL's (forum)
073 - Vuoriyarvi alkaline-ultrabasic massif - 9 TL's
071 - Sacarîmb - 8 TL's
070 - Big Fish river - 7 TL's
070 - Lohley - 5 TL's (forum)
069 - Torrecillas mine - 17 TL's
068 - Fillow quarry - 9 TL's
068 - Cerchiara - 8 TL's
067 - Allende meteorite - 19 TL's
065 - Punta de Su Seinargiu - 8 TL's
065 - Torr Works - 7 TL's
064 - Caldera di Sacrofano - 8 TL's
063 - Lakargi - 22 TL's
062 - Narssarssuk - 13 TL's (forum)
061 - Rapid Creek - 7 TL's
061 - Prabornaz - 6 TL's (forum)
055 - Allchar - 12 TL's (forum)
054 - Clue de Roua - 9 TL's (forum)
054 - Grand Reef - 7 TL's
053 - Uchucchacua - 7 TL's
051 - Big Creek-Rush Creek - 16 TL's
051 - El Dragon - 8 TL's (forum)
051 - Trimouns - 2 TL's (forum)
049 - Kobokobo - 14 TL's
048 - Jas Roux - 9 TL's (forum)
048 - Ploskaya-Keivy - 7 TL's
045 - Taylor Pit, Madoc - 9 TL's
045 - Doira Mara - 6 TL's
042 - Pereval - 10 TL's
041 - Stetind - 8 TL's
041 - Låven - 7 TL's
036 - Mounana - 9 TL's
036 - Monte Arsiccio - 5 TL's (forum)
035 - Searles Lake - 10 TL's
032 - Khatyrka meteorite - 12 TL's
031 - Tachgagalt - 7 TL's
031 - Packrat - 7 TL's
030 - Larderello - 6 TL's
029 - Solongo - 7 TL's
024 - Pacajake - 4 TL's
018 - Novofrolovskoye - 7 TL's
016 - Minas Ragra - 9 TL's
013 - Izalco - 8 TL's

If we missed a special one, please write it here in the forum
(this and this Mindat listing is included. Thanks to Jolyon for wasting time on this with me!)