City Data – San Gregorio CA 94074 – San Mateo County – 23/27

City Data – San Gregorio CA 94074 – San Mateo County – 23/27

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City Data – San Gregorio  CA 94074 – San Mateo County – 23/27

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Estimated zip code population in 2013: 253
Zip code population in 2010: 214
Zip code population in 2000: 287