Toa Alta barrio-pueblo
Toa Alta barrio-pueblo is a barrio and the administrative center (seat) of Toa Alta, a municipality of Puerto Rico. Its population in 2010 was 397.
- Toa Baja barrio-pueblo
- Toa Baja barrio-pueblo is a barrio and the administrative center (seat) of Toa Baja, a municipality of Puerto Rico. Its population in 2010 was 565
- Isabela barrio-pueblo
- Isabela barrio-pueblo is a barrio and the administrative center (seat) of Isabela, a municipality of Puerto Rico. Its population in 2010 was 7,826
- Yabucoa barrio-pueblo
- Yabucoa barrio-pueblo is a barrio and the administrative center (seat) of Yabucoa, a municipality of Puerto Rico. Its population in 2010 was 2,593
- Guayanilla barrio-pueblo
- Guayanilla barrio-pueblo is an urban barrio and the administrative center (seat) of Guayanilla, a municipality of Puerto Rico. Its population in 2010 was 3,757
- Lares barrio-pueblo
- Lares barrio-pueblo is a barrio and the administrative center (seat) of Lares, a municipality of Puerto Rico. Its population in 2010 was 2,690
- Barceloneta barrio-pueblo
- Barceloneta barrio-pueblo is a barrio and the administrative center (seat) of Barceloneta, a municipality of Puerto Rico. Its population in 2010 was 435
- Hatillo barrio-pueblo
- Hatillo barrio-pueblo is a barrio and the administrative center (seat) of Hatillo, a municipality of Puerto Rico. Its population in 2010 was 3,117
- Yauco barrio-pueblo
- Yauco barrio-pueblo is a barrio and the administrative center (seat) of Yauco, a municipality of Puerto Rico. Its population in 2010 was 3,091
- Peñuelas barrio-pueblo
- Peñuelas barrio-pueblo is a barrio and the administrative center (seat) of Peñuelas, a municipality of Puerto Rico. Its population in 2010 was 1,422
- Polhillia ignota
- Polhillia ignota is a species of flowering plant in the genus Polhillia. Prior to its rediscovery in September 2016, it was known from two specimens, and declared extinct in 2014. There are only 13 plants known, on a small renosterveld fragment less than