Source identity and administrative path
The source row behind Teresina is GeoNames ID 3386496. Its recorded administrative path is Teresina → Piaui → Brazil, and GeoNames classifies the place as a first-order administrative seat. Teresina occurs once as a primary city label in this atlas sample; the numeric ID remains the durable source key if names change. The city row itself was updated 2026-04-13; that date belongs to the source record, not to every transport or visitor detail in the real destination.
Population position inside fixed cohorts
Within the fixed 1,206-record atlas, Teresina ranks 638 by recorded population. Inside the 48 selected Brazil entries it ranks 19; inside the 198 entries in its broad region it ranks 91. Its 871,126 population value is 1.15 times the 758,563 median for the country cohort and 1.07 times the 816,326 regional median. Teresina sits in the second quarter of this atlas's Brazil population cohort. Teresina's recorded value stays within one quarter of the country-cohort median used here. These comparisons describe this selected dataset only; they are not current census rankings or official urban-area boundaries.
Nearest-reference pattern
Teresina's three nearest other atlas coordinates are São Luís at 329.726 km with 917,237 recorded people; Fortaleza at 496.189 km with 2,400,000 recorded people; Ananindeua at 744.125 km with 535,547 recorded people. The closest-to-farthest distance spread is 414.399 km. Compared with São Luís, Teresina's recorded population is 0.95 times as large. Against Teresina, São Luís follows Sao Luis → Maranhao → Brazil in the source. Its point has higher latitude and lower longitude; it belongs to the same selected Brazil cohort, uses the shared America/Fortaleza identifier, and carries the same first-order administrative seat class. Its recorded population is above Teresina's. Against Teresina, Fortaleza follows Fortaleza → Ceara → Brazil in the source. Its point has higher latitude and higher longitude; it belongs to the same selected Brazil cohort, uses the shared America/Fortaleza identifier, and carries the same first-order administrative seat class. Its recorded population is above Teresina's. Against Teresina, Ananindeua follows Ananindeua → Para → Brazil in the source. Its point has higher latitude and lower longitude; it belongs to the same selected Brazil cohort, uses America/Belem instead of America/Fortaleza, and carries populated place rather than first-order administrative seat. Its recorded population is below Teresina's. Its nearest-neighbor distance ranks 1,130 of 1,206 from shortest to longest in the same snapshot. Teresina's nearest-coordinate gap belongs to the wider half of atlas distances. This pattern can reveal whether other catalog references are geographically close, but it cannot establish whether a border crossing is possible or practical, or whether rail, road, fare, or journey-time connections exist. Read as one record signature, GeoNames 3386496, the coordinate pair 5.0892 / 42.8019, country rank 19 of 48, and neighbor GeoNames 3388368 at 329.726 km bind Teresina to a reproducible comparison. That combined key distinguishes the row; it is not a recommendation or evidence of a physical connection.
Coordinate, time-zone and class cohorts
Teresina's reference point is 5.0892° south and 42.8019° west. The IANA identifier America/Fortaleza is shared by 5 city rows in this catalog, while the GeoNames class PPLA is shared by 429 rows. Teresina's row carries both second- and first-order administrative labels. Teresina's point falls in the near-equatorial coordinate band used by this atlas's row checks. Teresina's time-zone field defines the narrower catalog cohort; its place class is shared more broadly. GeoNames supplies no elevation for Teresina, so the profile preserves that missing value instead of guessing terrain. Together these fields form a reproducible identity check for this page, not a claim about walkability, climate or accessibility.
- Record keys
- Teresina · GeoNames 3386496 · no verified Wikidata entity
- Name scope
- Teresina · 1 atlas row share this source label · qualifier not required
- Administrative chain
- Teresina · Piaui · Brazil
- Coordinate signature
- 5.0892° S · 42.8019° W
- Population snapshot
- 871,126 · atlas rank 638 of 1,206
- Country comparison
- Brazil rank 19 of 48 · median 758,563 · ratio 1.15×
- Regional comparison
- the Americas rank 91 of 198 · median 816,326 · ratio 1.07×
- Time-zone cohort
- America/Fortaleza · 5 of 1,206 atlas rows
- Place-class cohort
- PPLA first-order administrative seat · 429 of 1,206 rows
- Elevation field
- Teresina · missing in GeoNames
- Nearest reference
- São Luís · 329.726 km · population 917,237 · atlas rank 600
- Second reference
- Fortaleza · 496.189 km · population 2,400,000 · atlas rank 159
- Third reference
- Ananindeua · 744.125 km · population 535,547 · atlas rank 1,054
- Neighbour geometry
- Teresina · nearest-distance rank 1,130 of 1,206 · three-reference spread 414.399 km
- Source dates
- Teresina row updated 2026-04-13 · atlas dataset checked 2026-08-04