Municipalities of Puerto Rico Map of Puerto Rico by municipality
Location Commonwealth of Puerto Rico Number 78 Populations From 1,818 pop. in Culebra to 395,326 pop. in San Juan Areas From 4.84 square miles (12.5 km2 ) in Cataño to 125.95 square miles (326.2 km2 ) in Arecibo Government Subdivisions
The municipalities of Puerto Rico (Spanish : municipios de Puerto Rico ) are second-level administrative divisions defined with geographic boundaries and governmental authority in the archipelago and island of Puerto Rico , an unincorporated territory of the U.S. Amounting to 78 incorporated towns and cities equivalent to U.S. counties , two of which are outside the main island, namely the smaller islands of Vieques and Culebra , the municipalities are governed by a popularly elected strong mayor and unicameral legislature . They are subdivided into 902 barrios , third-level divisions controlled by the municipal government.[ 1] [ 2] As a jurisdiction under U.S. sovereignty , Puerto Rico does not have first-level administrative units akin to states or provinces .
The municipalities of Puerto Rico operate under the Municipal Code of Puerto Rico (Law No. 107 of 2020), which superseded the Autonomous Municipalities Act of Puerto Rico (Law No. 81 of 1991), as established by the Legislative Assembly of Puerto Rico , the governmental body responsible for their organization under Section 1, Article VI of the Constitution of Puerto Rico .[ 3] Electorally , the municipalities are grouped into eight senatorial districts and forty representative districts , representing roughly equal populations in the Legislative Assembly.[ 4] [ 5]
The archipelago and island of Puerto Rico is administratively divided into the following 78 municipalities:
The archipelago and island of Puerto Rico is administratively divided into the following 78 municipalities (alphabetically ordered):[ 6]
Municipalities of Puerto Rico
Name
Location
Flag
Coat of Arms
Title
FIPS code[ 7]
Population (2020)[ 8]
Population (2010)[ 9]
Area[ 10]
Founded
Barrios
Adjuntas
Town
72001
18,020
19,483
66.69 sq mi (172.73 sq km)
1815
List
Aguada
Town
72003
38,136
41,959
30.85 sq mi (79.90 sq km)
1639
List
Aguadilla
City
72005
55,101
60,949
36.53 sq mi (94.61 sq km)
1775
List
Aguas Buenas
Town
72007
24,223
28,659
30.08 sq mi (77.92 sq km)
1838
List
Aibonito
Town
72009
24,637
25,900
31.31 sq mi (81.10 sq km)
1824
List
Añasco
Town
72011
25,596
29,261
39.29 sq mi (101.75 sq km)
1733
List
Arecibo
City
72013
87,754
96,440
125.95 sq mi (326.20 sq km)
1616
List
Arroyo
Town
72015
15,843
19,575
15.01 sq mi (38.87 sq km)
1855
List
Barceloneta
Town
72017
22,657
24,816
18.69 sq mi (48.41 sq km)
1881
List
Barranquitas
Town
72019
28,983
30,318
34.25 sq mi (88.71 sq km)
1803
List
Bayamón
City
72021
185,187
208,116
44.32 sq mi (114.80 sq km)
1772
List
Cabo Rojo
Town
72023
47,158
50,917
70.37 sq mi (182.27 sq km)
1771
List
Caguas
City
72025
127,244
142,893
58.60 sq mi (151.77 sq km)
1775
List
Camuy
Town
72027
32,827
35,159
46.35 sq mi (120.06 sq km)
1807
List
Canóvanas
Town
72029
42,337
47,648
32.87 sq mi (85.12 sq km)
1909
List
Carolina
City
72031
154,815
176,762
45.32 sq mi (117.38 sq km)
1816
List
Cataño
Town
72033
23,155
28,140
4.84 sq mi (12.55 sq km)
1927
List
Cayey
Town
72035
41,652
48,119
51.93 sq mi (134.51 sq km)
1773
List
Ceiba
Town
72037
11,307
13,631
29.04 sq mi (75.20 sq km)
1838
List
Ciales
Town
72039
16,984
18,782
66.53 sq mi (172.31 sq km)
1820
List
Cidra
Town
72041
39,970
43,480
36.02 sq mi (93.29 sq km)
1809
List
Coamo
Town
72043
34,668
40,512
78.10 sq mi (202.27 sq km)
1579
List
Comerío
Town
72045
18,883
20,778
28.40 sq mi (73.56 sq km)
1826
List
Corozal
Town
72047
34,571
37,142
42.57 sq mi (110.26 sq km)
1795
List
Culebra
Town
72049
1,792
1,818
11.62 sq mi (30.10 sq km)
1880
List
Dorado
Town
72051
35,879
38,165
23.09 sq mi (59.80 sq km)
1842
List
Fajardo
Town
72053
32,124
36,993
29.86 sq mi (77.34 sq km)
1772
List
Florida
Town
72054
11,692
12,680
15.21 sq mi (39.39 sq km)
1971
List
Guánica
Town
72055
13,787
19,427
37.05 sq mi (95.96 sq km)
1914
List
Guayama
Town
72057
36,614
45,362
64.99 sq mi (168.32 sq km)
1736
List
Guayanilla
Town
72059
17,784
21,581
42.27 sq mi (109.48 sq km)
1833
List
Guaynabo
City
72061
89,780
97,924
27.58 sq mi (71.43 sq km)
1769
List
Gurabo
Town
72063
40,622
45,369
27.89 sq mi (72.23 sq km)
1815
List
Hatillo
Town
72065
38,486
41,953
41.78 sq mi (108.21 sq km)
1823
List
Hormigueros
Town
72067
15,654
17,250
11.34 sq mi (29.37 sq km)
1874
List
Humacao
City
72069
50,896
58,466
44.75 sq mi (115.90 sq km)
1722
List
Isabela
Town
72071
42,943
45,631
55.30 sq mi (143.23 sq km)
1819
List
Jayuya
Town
72073
14,779
16,642
44.53 sq mi (115.33 sq km)
1911
List
Juana Díaz
Town
72075
46,538
50,747
60.28 sq mi (156.12 sq km)
1798
List
Juncos
Town
72077
37,012
40,290
26.49 sq mi (68.61 sq km)
1797
List
Lajas
Town
72079
23,334
25,753
59.95 sq mi (159.15 sq km)
1883
List
Lares
Town
72081
28,105
30,753
61.45 sq mi (159.15 sq km)
1827
List
Las Marías
Town
72083
8,874
9,881
46.36 sq mi (120.07 sq km)
1871
List
Las Piedras
Town
72085
35,180
38,675
33.88 sq mi (87.75 sq km)
1773
List
Loíza
Town
72087
23,693
30,060
19.37 sq mi (50.17 sq km)
1719
List
Luquillo
Town
72089
17,781
20,068
25.81 sq mi (66.85 sq km)
1797
List
Manatí
Town
72091
39,492
44,113
46.13 sq mi (119.48 sq km)
1738
List
Maricao
Town
72093
4,755
6,276
36.62 sq mi (94.85 sq km)
1874
List
Maunabo
Town
72095
10,589
12,225
21.07 sq mi (54.57 sq km)
1799
List
Mayagüez
City
72097
73,077
89,080
77.65 sq mi (201.11 sq km)
1760
List
Moca
Town
72099
37,460
40,109
50.34 sq mi (130.38 sq km)
1772
List
Morovis
Town
72101
28,727
32,610
38.87 sq mi (100.67 sq km)
1818
List
Naguabo
Town
72103
23,386
26,720
51.66 sq mi (133.80 sq km)
1821
List
Naranjito
Town
72105
29,241
30,402
27.40 sq mi (70.97 sq km)
1824
List
Orocovis
Town
72107
21,434
23,423
63.62 sq mi (164.78 sq km)
1825
List
Patillas
Town
72109
15,985
19,277
46.7 sq mi (120.95 sq km)
1811
List
Peñuelas
Town
72111
20,399
24,282
44.62 sq mi (115.57 sq km)
1793
List
Ponce
City
72113
137,491
166,327
114.76 sq mi (297.23 sq km)
1692
List
Quebradillas
Town
72115
23,638
25,919
22.68 sq mi (58.74 sq km)
1823
List
Rincón
Town
72117
15,187
15,200
14.29 sq mi (37.01 sq km)
1771
List
Río Grande
Town
72119
47,060
54,304
60.62 sq mi (157.01 sq km)
1840
List
Sabana Grande
Town
72121
22,729
25,265
35.83 sq mi (92.80 sq km)
1813
List
Salinas
Town
72123
25,789
31,078
69.37 sq mi (179.67 sq km)
1851
List
San Germán
Town
72125
31,879
35,527
54.50 sq mi (141.15 sq km)
1573
List
San Juan
City
72127
342,259
395,326
47.85 sq mi (123.93 sq km)
1519 [ 11]
List
San Lorenzo
Town
72129
37,693
41,058
53.11 sq mi (137.55 sq km)
1811
List
San Sebastián
Town
72131
39,345
42,430
70.42 sq mi (182.39 sq km)
1752
List
Santa Isabel
Town
72133
20,281
23,274
34.02 sq mi (88.119 sq km)
1842
List
Toa Alta
City
72135
66,852
74,066
27.02 sq mi (69.98 sq km)
1751
List
Toa Baja
City
72137
75,293
89,609
23.24 sq mi (60.19 sq km)
1745
List
Trujillo Alto
City
72139
67,740
74,842
20.76 sq mi (53.77 sq km)
1801
List
Utuado
Town
72141
28,287
33,149
113.53 sq mi (294.04 sq km)
1739
List
Vega Alta
Town
72143
35,395
39,951
27.73 sq mi (71.82 sq km)
1775
List
Vega Baja
City
72145
54,414
59,662
45.86 sq mi (118.78 sq km)
1776
List
Vieques
Town
72147
8,249
9,301
50.77 sq mi (131.49 sq km)
1852
List
Villalba
Town
72149
22,093
26,073
35.64 sq mi (92.31 sq km)
1917
List
Yabucoa
Town
72151
30,412
37,941
55.21 sq mi (142.99 sq km)
1793
List
Yauco
Town
72153
34,172
42,043
68.19 sq mi (176.61 sq km)
1756
List
Most populated municipalities [ edit ]
Municipalities with more than 100,000 inhabitants
San Juan , the largest municipality and capital of Puerto Rico.
Bayamón , the second largest municipality of Puerto Rico, located just west of San Juan.
Carolina , the third largest municipality of Puerto Rico, located just east of San Juan.
Ponce , the fourth largest municipality of Puerto Rico and the largest municipality outside the
San Juan metropolitan area .
Caguas , the fifth largest municipality of Puerto Rico.
Since 2020, the municipalities are organized under the Municipal Code of Puerto Rico (Law. No. 107 of 2020).[ 3] They were previously governed under by the Law of Autonomous Municipalities of Puerto Rico (Law. No. 81 of 1991), which established that every municipality must have an elected strong mayor with a municipal legislature as the form of government.[ 12] Each legislature must be unicameral , with the number of members related to adequate representation of the total population of the municipality. In contrast to other jurisdictions, both the mayors and the municipal legislators are elected on the same date and for the same term of four years in office.
From a political and ekistic perspective, several differences and similarities exist between municipalities of differing population sizes. For instance, municipalities with 50,000 inhabitants or more are considered incorporated cities , while those with fewer than 50,000 are considered incorporated towns .[ 13] Size affects the autonomy exercised by the jurisdiction: cities provide and manage their own services, while towns typically depend on nearby cities for certain services. Demographically, municipalities in Puerto Rico are equivalent to counties in the United States, and Puerto Rican municipalities are registered as county subdivisions in the United States census .[ 14] Statistically, the municipality with the largest number of inhabitants is San Juan , with 342,259, while Culebra is the smallest, with around 1,792. Arecibo is the largest in terms of geography, with around 125 mi2 , and Cataño the smallest, with around 4.8 mi2 .[ 8]
Except for San Juan , Ponce , Florida , and Vieques , all municipalities have a barrio equivalent to a downtown area in the U.S. called pueblo , officially known as barrio-pueblo (literally "ward-town"), which typically is the site of the historic Spanish colonial settlement, administrative center, and urban core of the municipality.[ 15] However, municipalities with large populations, like Ponce , may have an urban core that consist of several barrios.
In Recent Civic Architecture in Porto Rico by Adrian C. Finlayson, architect for the Insular Department of the Interior Architecture, writing for the publication Architectural Record in 1920, the Puerto Rican municipality is accurately described as:
Not merely a city, but something similar to a wide-extending township in New England—like Plymouth, Massachusetts, or Barnstable, on Cape Cod comprising a central town or city with perhaps several outlying districts or barrios, usually rural in character, and occasionally having sizeable concentrated populations in villages, the municipality bearing the name of the central urban portion and all under one local government.
Recent Civic Architecture in Porto Rico, 1920 [ 16]
In 2012, 36 of the 78 municipalities (46%) were experiencing a budget deficit .[ 17] In total, the combined debt carried by the municipalities stands at about US$590 million.[ a]
Surplus Deficit
Municipality
Mayor's party
Population[ 9]
Surplus or deficit[ 19]
Surplus or deficit per capita[ 19]
Public debt[ 19]
Public debt per capita[ 19]
Adjuntas
PNP
19,483
Aguada
PPD
41,959
Aguadilla
PNP
60,949
Aguas Buenas
PPD
28,659
Aibonito
PNP
25,900
Añasco
PPD
29,261
Arecibo
PNP
96,440
Arroyo
PPD
19,575
Barceloneta
PPD
24,816
Barranquitas
PNP
30,318
Bayamón
PNP
208,116
Cabo Rojo
PPD
50,917
Caguas
PPD
142,893
Camuy
PNP
35,159
Canóvanas
PNP
47,648
Carolina
PPD
176,762
Cataño
PPD
28,140
Cayey
PPD
48,119
Ceiba
PNP
13,631
Ciales
PPD
18,782
Cidra
PNP
43,480
Coamo
PPD
40,512
Comerío
PPD
20,778
Corozal
PPD
37,142
Culebra
PPD
1,818
Dorado
PPD
38,165
Fajardo
PNP
36,993
Florida
PNP
12,680
Guánica
PNP
19,427
Guayama
PPD
45,362
Guayanilla
PPD
21,581
Guaynabo
PNP
97,924
Gurabo
PNP
45,369
Hatillo
PPD
41,953
Hormigueros
PPD
17,250
Humacao
PPD
58,466
Isabela
PPD
45,631
Jayuya
PPD
16,642
Juana Díaz
PPD
79,897
Juncos
PPD
40,290
Lajas
PPD
25,753
Lares
PNP
30,753
Las Marías
PPD
9,881
Las Piedras
PNP
38,675
Loíza
PNP
30,060
Luquillo
PPD
20,068
Manatí
PNP
44,113
Maricao
PNP
6,276
Maunabo
PPD
12,225
Mayagüez
PPD
89,080
Moca
PNP
40,109
Morovis
PNP
32,610
Naguabo
PNP
26,720
Naranjito
PNP
30,402
Orocovis
PNP
23,423
Patillas
PPD
19,277
Peñuelas
PPD
24,282
Ponce
PNP
166,327
Quebradillas
PPD
25,919
Rincón
PPD
15,200
Río Grande
PPD
54,304
Sabana Grande
PPD
25,265
Salinas
PPD
31,078
San Germán
PPD
35,527
San Juan
PPD
395,326
San Lorenzo
PPD
41,058
San Sebastián
PNP
42,430
Santa Isabel
PNP
23,274
Toa Alta
PPD
74,066
Toa Baja
PNP
89,609
Trujillo Alto
PPD
74,842
Utuado
PPD
33,149
Vega Alta
PNP
39,951
Vega Baja
PPD
59,662
Vieques
PPD
9,301
Villalba
PPD
26,073
Yabucoa
PPD
37,941
Yauco
PNP
42,043
The following is an alphabetical list of the municipalities and their population together with a breakdown of their racial composition.
Proposed amalgamation [ edit ]
Multiple times, politicians have discussed and proposed consolidating Puerto Rico's municipalities but so far no proposals has been adopted. In 1902 the Puerto Rico legislature, under pressure from the U.S.-appointed governor of Puerto Rico, passed a law consolidating the then-76 municipalities of Puerto Rico into 46.[ 23] The law was repealed three years later.[ 24] [ 25] In October 2009, a Puerto Rican legislator proposed a bill that would reduce the current 78 municipalities of Puerto Rico down to 20. The bill called for a referendum to take place on June 13, 2010, which would let the people decide on the matter.[ 26] However, the bill never made into law.[ 27] With the Puerto Rican government-debt crisis that emerged in the first half of 2010s, a new plan to consolidate municipalities was again circulated in the legislature in 2017 as a way to alleviate the government debt crisis.[ 28] [ 29] In March 2019, then Governor Ricardo Rosselló created an initiative that would preserve the existing municipalities but create regional consolidation by sharing service overhead in the form of counties but he resigned prior to anything coming of his proposal.[ 30]
^ WAPA-TV (2014; in Spanish) "El informe sobre la medida señala que al presente los municipios arrastran una deuda agregada de aproximadamente $590 millones [...]"[ 18]
^ "Directorio Municipios" . www.pr.gov (in Spanish). Archived from the original on 2025-02-26. Retrieved 2025-10-19 .
^ "Ley Núm. 70 de 2006 -Ley para disponer la oficialidad de la bandera y el escudo de los setenta y ocho (78) municipios" . LexJuris de Puerto Rico (in Spanish). Retrieved 2021-06-15 .
^ a b "Ley Núm. 107 de 2020 -Libro I - Gobierno Municipal - Codigo Municipal de Puerto Rico" . www.lexjuris.com . Retrieved 2025-10-19 .
^ "Distribución de Distritos Senatoriales y Representativos 2022" . electionspuertorico.org . Retrieved 2025-10-19 .
^ "Determinación | Junta Constitucional" . juntaconstitucionalderedistribucion.pr . Retrieved 2025-10-31 .
^ "Directorio Municipios" . www.pr.gov (in Spanish). Retrieved 2025-09-02 .
^ "EPA County FIPS Code Listing" . U.S. Environmental Protection Agency . Archived from the original on 2012-10-08. Retrieved 2008-02-23 .
^ a b "Puerto Rico Population Declined 11.8% From 2010 to 2020" . Census.gov . Retrieved 2022-03-11 .
^ a b "U.S. Census Bureau" . Retrieved July 26, 2013 .
^ "U.S. Census Bureau geography" . Retrieved August 31, 2011 .
^ El Morro. United States National Park Service. Accessed 6 October 2019.
^ "LEY DE MUNICIPIOS AUTONOMOS DE PUERTO RICO" . www.lexjuris.com . Retrieved 2025-10-19 .
^ Sánchez Martínez, Héctor (October 10, 2012). "Puerto Rico: la isla de los 900 barrios" . La Perla del Sur (in Spanish). No. 1506. p. 36.
^ "Puerto Rico" . Census.gov . Retrieved 2022-03-11 .
^ José A. Mari Mut (2013-08-28). Los pueblos de Puerto Rico y las iglesias de sus plazas .
^ Baxter, Sylvester (August 1920). "Recent Civic Architecture in Porto Rico by Adrian C Finlayson, Architect for the Insular Department of the Interior" . The Architectural Record . p. 77. Retrieved September 23, 2022 – via Wikisource.
^ Vázquez, Brenda (November 16, 2012). "Extensa la lista de los municipios con déficit" . Metro Puerto Rico (in Spanish). Metro International . Retrieved September 29, 2013 .
^ "Nace la Corporación de Financiamiento Municipal" (in Spanish). WAPA-TV . January 23, 2014. Retrieved February 20, 2014 .
^ a b c d "Indicadores Socioeconómicos Municipales" (in Spanish). Puerto Rico Ombudsman . August 12, 2013. Archived from the original on 2013-09-25. Retrieved September 29, 2013 .
^ "2010 Census" . Medgar Evers College. Archived from the original on 2010-06-11. Retrieved 2010-04-13 .
^ US Census Bureau: Table QT-P10 Hispanic or Latino by Type: 2010 retrieved January 22, 2012 - select state from drop-down menu
^ United States Census
^ Historia de Nuestros Barrios: Barrio Lapa, Salinas. Page 4. Retrieved 13 February 2011. Archived.
^ Guayanilla. Encyclopedia Puerto Rico. Archived 2010-12-15 at the Wayback Machine Retrieved April 28, 2010.
^ Historia de Nuestros Barrios: Lapa, Salinas. Accessed February 13, 2011.
^ Legislador propone reducir a 20 los 78 municipios de Puerto Rico. PrimeraHora.com 4 October 2009. In Spanish. Accessed 7 November 2009. Archived 15 November 2009.
^ Los municipios autónomos llegan a la mayoría de edad (documento). Cristina del Mar Quiles. Noticel. 3 June 2012. Retrieved 28 June 2012. Archived 4 June 2012.
^ Líderes legislativos ponen freno a la eliminación de municipios. Nydia Bauzá. Primerahora.com 31 July 2017. 31 July 2017. Archived 1 August 2017.
^ Presentan proyecto para consolidar 58 municipios en 20. English (via "Google Translate")=Project presented to consolidate 58 municipalities in 20 Metro.pr 16 May 2016. Accessed 23 February 2022. Archived on 23 February 2022.
^ Puerto Rico governor to introduce measure to consolidate Puerto Rico into Counties Maria Miranda. CaribbeanBusiness.com March 15, 2019
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