Alajuela is one of the seven multi-member constituencies of the Legislative Assembly, the national legislature of Costa Rica. The constituency was established in 1949 when the Legislative Assembly was established by the modified constitution imposed by the Figueres dictatorship. It is conterminous with the province of Alajuela. The constituency currently elects 11 of the 57 members of the Legislative Assembly using the closed party-list proportional representation electoral system. At the 2022 general election it had 679,844 registered electors.

Electoral system Alajuela currently elects 11 of the 57 members of the Legislative Assembly using the closed party-list proportional representation electoral system. Seats are allocated using the largest remainder method using the Hare quota (cociente). Only parties that receive at least 50% of the Hare quota (subcociente) compete for remainder seats. Any seats remaining unfilled after allocation using the quotient system are distributed amongst parties that surpassed the subcociente, is descending order of their total votes in the constituency. The latter process is repeated until all the seats in the constituency are filled.

Election results Summary

Election United PeoplePU / IU / CC2000 /PASO Broad FrontFA Patriotic AllianceAP / PADA Citizens' ActionPAC National RepublicanPRN / PR / PRI / PC National LiberationPLN / PSD Social Christian UnityPUSC / CU / PDC National UnificationPUN / PUN National IntegrationPIN Libertarian MovementPML Social DemocraticProgressPPSD National RestorationPRN colspan=3 colspan=3 colspan=3 colspan=3 colspan=3 colspan=3 colspan=3 colspan=3 colspan=3 colspan=3 colspan=3 colspan=3 Votes % Seats Votes % Seats Votes % Seats Votes % Seats Votes % Seats Votes % Seats Votes % Seats Votes % Seats Votes % Seats Votes % Seats Votes % Seats Votes % Seats2022 1,753 0.42% 0 28,645 6.86% 1 7,414 1.78% 0 108,377 25.97% 3 47,434 11.37% 2 6,019 1.44% 0 2,623 0.63% 0 78,496 18.81% 2 6,827 1.64% 02018 11,982 2.85% 0 73,436 17.46% 2 91,520 21.76% 3 60,235 14.32% 2 30,612 7.28% 1 6,557 1.56% 0 86,719 20.62% 22014 56,012 14.03% 2 2,261 0.57% 0 100,572 25.20% 3 109,409 27.41% 4 32,934 8.25% 1 2,119 0.53% 0 30,661 7.68% 1 12,884 3.23% 02010 4,835 1.32% 0 6,922 1.89% 0 72,880 19.94% 2 139,515 38.17% 5 23,746 6.50% 1 1,314 0.36% 0 60,198 16.47% 2 2006 791 0.26% 0 7,867 2.56% 0 85,277 27.74% 4 114,567 37.27% 5 21,257 6.92% 1 1,397 0.45% 0 24,021 7.81% 1 2002 1,784 0.62% 0 59,414 20.68% 2 87,534 30.47% 4 86,760 30.20% 4 4,117 1.43% 0 21,535 7.50% 1 1998 1,043 0.41% 0 6,614 2.59% 0 90,809 35.52% 4 104,547 40.89% 4 3,329 1.30% 0 3,577 1.40% 0 1994 11,630 4.33% 0 124,538 46.36% 5 110,839 41.26% 5 1990 3,469 1.43% 0 7,330 3.02% 0 105,608 43.47% 5 113,942 46.90% 5 1986 2,581 1.23% 0 4,324 2.06% 0 104,726 49.86% 5 88,240 42.01% 5 1982 5,517 3.25% 0 12,486 7.37% 1 94,080 55.50% 6 51,018 30.10% 3 1978 6,217 4.24% 0 62,835 42.85% 5 67,698 46.17% 5 6,251 4.26% 0 1974 2,253 1.92% 0 3,152 2.69% 0 51,895 44.32% 5 955 0.82% 0 29,381 25.09% 3 1970 2,300 2.41% 0 49,958 52.31% 6 1,326 1.39% 0 36,753 38.49% 4 1966 37,966 49.22% 5 34,382 44.57% 5 1962 19,438 28.00% 3 34,910 50.29% 6 11,796 16.99% 2 1958 6,701 17.05% 2 19,777 50.33% 4 9,519 24.22% 2 1953 22,770 67.81% 6 1,927 5.74% 0 1949 1 1 7

Detailed 2020s 2022 Results of the 2022 general election held on 6 February 2022:

Party Votes per canton Totalvotes % SeatsAla-juela Atenas Grecia Gua-tuso LosChiles Naranjo Orotina Pal-mares Poás RíoCuarto SanCarlos SanMateo SanRamón Sarchí Upala Zarcero National Liberation Party PLN 33,747 3,218 9,902 2,008 1,511 6,602 2,569 4,433 4,763 1,522 20,843 979 8,357 1,514 3,554 2,855 108,377 25.97% 3 Social Democratic Progress Party PPSD 22,943 3,478 6,814 794 1,470 4,042 1,259 3,217 2,399 741 17,528 388 9,191 1,093 1,919 1,220 78,496 18.81% 2 Social Christian Unity Party PUSC 14,013 2,209 5,886 699 759 2,349 1,556 1,692 1,953 358 4,708 439 4,796 1,944 3,296 777 47,434 11.37% 2 New Republic Party PNR 14,788 1,205 3,479 1,102 1,052 1,986 917 1,290 1,913 504 9,256 216 3,326 883 2,864 331 45,112 10.81% 2 Progressive Liberal Party PLP 15,208 1,085 3,446 104 98 1,446 632 3,894 1,428 96 4,575 140 3,163 433 411 435 36,594 8.77% 1 Broad Front FA 9,631 1,192 2,467 137 257 1,681 650 1,794 1,132 130 3,527 211 4,300 595 476 465 28,645 6.86% 1 Social Christian Republican Party PRSC 2,787 162 503 769 62 246 73 253 386 45 1,590 30 361 64 277 62 7,670 1.84% 0 Citizens' Action Party PAC 2,281 271 460 73 64 751 87 370 208 59 1,456 25 824 122 285 78 7,414 1.78% 0 National Restoration Party PRN 2,268 155 453 104 114 276 114 294 236 62 1,734 42 521 104 302 48 6,827 1.64% 0 National Integration Party PIN 962 137 227 72 97 144 46 336 70 18 903 17 2,746 39 138 67 6,019 1.44% 0 Liberal Union Party UL 1,333 78 285 44 41 185 49 213 144 25 546 10 1,511 50 103 50 4,667 1.12% 0 A Just Costa Rica CRJ 919 101 405 86 109 136 78 889 117 28 839 46 600 52 112 31 4,548 1.09% 0 Accessibility without Exclusion PASE 1,871 129 351 44 26 187 110 169 203 24 544 28 535 75 128 50 4,474 1.07% 0 New Generation Party PNG 1,531 108 270 35 84 123 169 118 112 24 995 80 388 49 85 53 4,224 1.01% 0 We Are 490 97 196 4 10 232 110 63 97 73 272 115 252 1,685 21 280 3,997 0.96% 0 Costa Rican SocialDemocratic Movement PMSDC 1,092 47 1,402 28 41 148 23 81 83 31 410 18 232 36 78 25 3,775 0.90% 0 National Force Party PFN 1,101 268 234 30 46 142 113 128 106 84 447 27 249 66 98 42 3,181 0.76% 0 United We Can UP 860 65 132 38 19 71 36 58 156 19 788 6 303 33 50 58 2,692 0.65% 0 Libertarian Movement PML 786 67 208 21 30 114 50 126 83 20 284 16 286 465 45 22 2,623 0.63% 0 Christian Democratic Alliance ADC 494 23 85 33 67 99 28 54 42 19 934 8 180 25 199 21 2,311 0.55% 0 Costa Rican Social Justice Party JSC 743 106 143 15 55 87 39 99 94 13 316 12 187 27 107 20 2,063 0.49% 0 United People PU 356 38 700 12 78 35 8 49 36 5 154 4 195 28 34 21 1,753 0.42% 0 Our People Party PNP 450 54 43 61 27 31 41 50 32 20 408 8 126 37 42 15 1,445 0.35% 0 Workers' Party PT 360 27 78 6 107 56 17 76 35 10 244 5 172 21 30 23 1,267 0.30% 0 National Encounter Party PEN 271 21 155 33 19 48 10 43 26 7 187 11 106 22 101 17 1,077 0.26% 0 Costa Rican Democratic Union PUCD 182 13 55 13 12 20 13 10 13 4 103 0 63 11 90 6 608 0.15% 0Valid votes 131,467 14,354 38,379 6,365 6,255 21,237 8,797 19,799 15,867 3,941 73,591 2,881 42,970 9,473 14,845 7,072 417,293 100.00% 11Blank votes 901 88 330 119 111 215 60 184 125 49 672 39 490 90 250 81 3,804 0.89% Rejected votes – other 1,255 104 335 114 86 227 101 200 147 49 779 26 475 74 258 67 4,297 1.01% Total polled 133,623 14,546 39,044 6,598 6,452 21,679 8,958 20,183 16,139 4,039 75,042 2,946 43,935 9,637 15,353 7,220 425,394 62.57% Registered electors 215,738 21,886 56,993 11,919 13,869 33,531 16,820 30,113 23,616 6,780 118,361 5,007 68,598 15,414 31,777 9,422 679,844 Turnout 61.94% 66.46% 68.51% 55.36% 46.52% 64.65% 53.26% 67.02% 68.34% 59.57% 63.40% 58.84% 64.05% 62.52% 48.31% 76.63% 62.57%

The following candidates were elected: Dinorah Barquero Barquero (PLN); Leslye Rubén Bojorges León (PUSC); José Joaquín Hernández Rojas (PLN); Olga Lidia Morera Arrieta (PNR); María Marta Padilla Bonilla (PPSD); Jorge Antonio Rojas López (PPSD); María Daniela Rojas Salas (PUSC); Monserrat Ruiz Guevara (PLN); José Pablo Sibaja Jiménez (PNR); Luis Diego Vargas Rodríguez (PLP); and Priscilla Vindas Salazar (FA).

2010s 2018 Results of the 2018 general election held on 4 February 2018:

Party Votes per canton Totalvotes % SeatsAla-juela Atenas Grecia Gua-tuso LosChiles Naranjo Orotina Pal-mares Poás SanCarlos SanMateo SanRamón Sarchí Upala Zarcero National Liberation Party PLN 31,298 2,450 7,573 1,667 1,100 4,660 2,399 4,482 3,378 14,456 825 9,705 3,620 1,725 2,182 91,520 21.76% 3 National Restoration Party PRN 28,939 2,071 8,610 1,848 1,426 2,988 1,769 2,743 2,975 19,343 291 6,798 4,321 1,893 704 86,719 20.62% 2 Citizens' Action Party PAC 23,361 3,123 7,778 348 640 4,094 1,028 4,364 2,864 11,043 257 10,195 1,535 1,504 1,302 73,436 17.46% 2 Social Christian Unity Party PUSC 17,266 3,282 5,758 737 1,220 3,719 1,979 4,191 2,211 9,918 897 3,499 2,011 1,998 1,549 60,235 14.32% 2 National Integration Party PIN 9,692 937 2,721 322 545 1,696 688 1,645 1,076 5,427 165 3,521 992 817 368 30,612 7.28% 1 Social Christian Republican Party PRSC 5,498 521 2,737 466 345 1,413 403 726 698 3,590 161 2,320 546 489 324 20,237 4.81% 1 Broad Front FA 3,375 575 1,012 102 237 606 201 971 434 1,975 78 1,584 357 263 212 11,982 2.85% 0 New Generation Party PNG 2,259 190 955 459 56 299 91 312 322 1,427 22 2,928 352 97 77 9,846 2.34% 0 Accessibility without Exclusion PASE 3,545 219 600 104 65 238 208 221 716 1,895 38 496 183 131 78 8,737 2.08% 0 Christian Democratic Alliance ADC 2,259 185 841 145 160 429 148 293 314 1,149 28 537 392 204 70 7,154 1.70% 0 Costa Rican Renewal Party PRC 1,929 342 575 97 128 1,129 144 265 308 849 118 515 447 131 60 7,037 1.67% 0 Libertarian Movement PML 2,171 437 500 77 88 267 109 315 240 875 43 831 240 278 86 6,557 1.56% 0 Progressive Liberal Party PLP 979 63 1,787 15 23 110 21 93 59 268 5 156 55 46 13 3,693 0.88% 0 Workers' Party PT 683 82 195 22 298 146 45 164 79 482 9 416 85 63 47 2,816 0.67% 0Valid votes 133,254 14,477 41,642 6,409 6,331 21,794 9,233 20,785 15,674 72,697 2,937 43,501 15,136 9,639 7,072 420,581 100.00% 11Blank votes 482 77 243 66 61 151 41 130 76 427 17 358 200 62 38 2,429 0.57% Rejected votes – other 1,525 152 447 121 104 258 127 260 177 971 39 506 310 105 73 5,175 1.21% Total polled 135,261 14,706 42,332 6,596 6,496 22,203 9,401 21,175 15,927 74,095 2,993 44,365 15,646 9,806 7,183 428,185 67.86% Registered electors 201,480 20,429 59,285 10,970 12,152 31,782 15,594 28,973 21,821 108,240 4,602 63,586 28,352 14,668 9,056 630,990 Turnout 67.13% 71.99% 71.40% 60.13% 53.46% 69.86% 60.29% 73.09% 72.99% 68.45% 65.04% 69.77% 55.18% 66.85% 79.32% 67.86%

The following candidates were elected: Ignacio Alberto Alpízar Castro (PRN); Luis Ramón Carranza Cascante (PAC); Nidia Lorena Céspedes Cisneros (PRN); María José Corrales Chacón (PLN); Dragos Dolanescu Valenciano (PRSC); Carolina Hidalgo Herrera (PAC); (PUSC); Erick Rodríguez Steller (PIN); María Inés Solís Quirós (PUSC); (PLN); and Daniel Isaac Ulate Valenciano (PLN).

2014 Results of the 2014 general election held on 2 February 2014: