A referendum on the status of the archipelago and island was held in Puerto Rico on 23 July 1967.Dieter Nohlen (2005) Elections in the Americas: A data handbook, Volume I, p552 Voters were given the choice between being a Commonwealth, statehood or independence. The majority of voters voted for Commonwealth status.Nohlen, p555 This was the first of several referendums held to decide on the political status of Puerto Rico.

The major pro-statehood party, the Partido Estadista Republicano, boycotted the referendum. As a result of its stance, several dissidents left the party to form the New Progressive Party.

Results

By municipality MunicipalityCommonwealthStatehoodIndependenceInvalid/BlankTotalVotes%Votes%Votes%Votes%Ponce20,11446.422,95052.93040.71330.3143,501 San Lorenzo4,21348.44,47551.4120.1390.458,739 Cataño3,25848.63,42451.1230.3190.286,724 Corozal3,78749.43,85650.3240.3380.497,705 San Juan63,49650.560,82348.41,30514340.34126,058 Guaynabo7,26352.16,57547.2920.7480.3413,978 Juana Díaz4,73053.44,09746.3270.3340.388,888 Bayamón17,26453.214,919462760.9890.2732,548 Moca3,40954.62,81645.1130.2450.726,283 Adjuntas3,26255.12,64044.6160.3320.545,950 Fajardo3,92054.93,17544.5420.6290.407,166 Aguada3,20056.22,45943.2330.6540.945,746 Jayuya2,32557.21,73642.770.2320.784,100 Orocovis3,30357.32,45642.690.2200.355,788 Coamo4,26757.23,17042.5190.3470.637,503 Peñuelas2,71357.41,99742.2200.4260.554,756 Las Piedras3,54758.22,52841.5160.3170.286,108 Villalba2,73158.61,91541.1140.3230.494,683 Guánica2,65058.41,85040.8380.8420.924,580 Caguas12,54158.78,68940.71230.6950.4421,448 Naguabo3,53759.12,42740.6170.3260.436,007 Santa Isabel2,58159.41,73640250.6190.444,361 Carolina9,24760.35,973391090.7570.3715,386 Juncos4,468612,82938.6260.4270.377,350 Aguadilla6,647614,18638.4680.6670.6110,968 Utuado5,82061.13,65138.3500.5320.339,553 Cidra3,38761.52,09638.1250.5330.605,541 Yauco6,254623,78437.5510.5570.5610,146 Ceiba1,57562.593937.280.3150.592,537 Rincón3,69262.42,19837.1280.5270.455,945 Toa Baja4,40762.62,60237300.4510.727,090 Guayanilla3,32462.41,96937320.6470.875,372 Toa Alta3,17064.11,76535.7130.3130.264,961 Patillas3,22864.91,73434.9130.3380.765,013 Añasco3,49064.91,85834.6290.5280.525,405 Trujillo Alto4,14464.82,19634.4510.8260.416,417 Vega Baja5,79865.43,03234.2380.4570.648,925 Arroyo2,44365.81,23933.4330.9260.703,741 Barceloneta4,59366.52,28233320.5310.456,938 Hatillo4,27166.52,11933300.5430.676,463 Guayama6,19666.83,04132.8420.5510.559,330 Manatí5,97566.82,93832.8310.3410.468,985 San Sebastián5,40566.82,65432.8380.5710.878,168 Lares4,50467.12,17832.4350.5340.506,751 Camuy4,26868.11,98431.6180.3370.596,307 Aibonito3,74368.31,72531.5150.3200.365,503 Mayagüez15,42467.67,17431.52110.91950.8523,004 Yabucoa6,06568.32,77431.3360.4720.808,947 Ciales3,27068.91,46630.970.1300.634,773 San Germán5,26268.42,36330.7700.9760.987,771 Cayey7,86969.33,45030.4340.3460.4011,399 Barranquitas3,62269.71,55629.9180.3390.745,235 Quebradillas2,62469.91,11129.6210.6461.213,802 Comerío3,626701,52629.5280.5190.375,199 Morovis3,86370.41,61529.490.2380.695,525 Naranjito4,46470.51,85129.2200.3320.506,367 Dorado3,34470.61,36828.9230.5280.594,763 Gurabo4,28571.31,70028.3270.4230.386,035 Luquillo2,46871.497528.2120.3270.783,482 Humacao7,97571.63,12728.1440.4360.3211,182 Cabo Rojo4,47871.11,76728560.9580.916,359 Río Grande2,11872.280227.3130.4351.182,968 Hormigueros1,8067268127.1230.9331.302,543 Arecibo14,99973.35,37026.21000.51360.6620,605 Aguas Buenas3,06773.91,07425.990.2150.364,165 Salinas4,91673.81,71825.8290.4330.496,696 Lajas3,49074.21,18925.3230.5310.654,733 Vega Alta3,77175.71,19924.1140.3330.665,017 Sabana Grande4,34676.71,31323.2100.2550.965,724 Loíza6,23376.61,86322.9370.5240.298,157 Maunabo2,27378.261921.3150.5381.292,945 Isabela5,53078.61,47621320.5761.077,114 Vieques1,91178.750720.990.4140.572,441 Las Marías1,9698048319.680.3240.972,484 Maricao1,45780.63441960.3150.821,822 Culebra22291.4197.820.841.62247 Absent Votes22560.214739.320.50.00374 Total425,13260.11274,31238.784,2480.603,6010.51707,293

References