1,206-CITY ATLASSOURCE-BACKED CITY REFERENCE
Peru
Compare this sourced profile of Callao, Peru before planning. Stable fields identify the place; confirm current transport, access and opening details with official sources.
01What the data says — and does not say
This page separates the checked GeoNames row for Callao—1,226,200, America/Lima, and source coordinates—from live travel claims. Those fields identify and compare the record; they do not prove current transport, accessibility, census totals, or a City Atlas Club visit.
Wikidata's localized description: city and main seaport of Peru.
02This city's dataset fingerprint
The source row behind Callao is GeoNames ID 3946083. Its recorded administrative path is Callao → Peru, and GeoNames classifies the place as a first-order administrative seat. Callao 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 2026-06-21; that date belongs to the source record, not to every transport or visitor detail in the real destination.
Within the fixed 1,206-record atlas, Callao ranks 427 by recorded population. Inside the 6 selected Peru entries it ranks 2; inside the 198 entries in its broad region it ranks 59. Its 1,226,200 population value is 1.08 times the 1,131,700 median for the country cohort and 1.50 times the 816,326 regional median. Callao is rank 2 among the 6 selected Peru entries, so a percentage band would overstate this small cohort. Callao'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.
Callao's three nearest other atlas coordinates are Lima at 11.596 km with 7,737,002 recorded people; Trujillo at 484.309 km with 1,067,700 recorded people; Chiclayo at 658.702 km with 609,400 recorded people. The closest-to-farthest distance spread is 647.106 km. Compared with Lima, Callao's recorded population is 0.16 times as large. Against Callao, Lima follows Lima Province → Peru in the source. Its point has higher latitude and higher longitude; it belongs to the same selected Peru cohort, uses the shared America/Lima identifier, and carries capital of a political entity rather than first-order administrative seat. Its recorded population is above Callao's. Against Callao, Trujillo follows Provincia de Trujillo → La Libertad → Peru in the source. Its point has higher latitude and lower longitude; it belongs to the same selected Peru cohort, uses the shared America/Lima identifier, and carries the same first-order administrative seat class. Its recorded population is below Callao's. Against Callao, Chiclayo follows Provincia de Chiclayo → Lambayeque → Peru in the source. Its point has higher latitude and lower longitude; it belongs to the same selected Peru cohort, uses the shared America/Lima identifier, and carries the same first-order administrative seat class. Its recorded population is below Callao's. Its nearest-neighbor distance ranks 168 of 1,206 from shortest to longest in the same snapshot. Callao's nearest-coordinate gap falls between the tightest tenth and quarter of the atlas. 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 3946083, the coordinate pair 12.0516 / 77.1345, country rank 2 of 6, and neighbor GeoNames 3936456 at 11.596 km bind Callao to a reproducible comparison. That combined key distinguishes the row; it is not a recommendation or evidence of a physical connection.
Callao's reference point is 12.0516° south and 77.1345° west. The IANA identifier America/Lima is shared by 6 city rows in this catalog, while the GeoNames class PPLA is shared by 429 rows. Callao's row carries both second- and first-order administrative labels. Callao's point falls in the near-equatorial coordinate band used by this atlas's row checks. Callao's time-zone field defines the narrower catalog cohort; its place class is shared more broadly. GeoNames supplies no elevation for Callao, 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.
03Nearby atlas references
Callao's closest other entries in this atlas are Lima (11.596 km), Trujillo (484.309 km), Chiclayo (658.702 km).
04Verify before you book
Before visiting Callao, confirm changing decisions with current first-party sources:
Read how City Atlas Club verifies changing travel facts →05Sources and freshness
GeoNames updated the row 2026-06-21; the atlas checked the dataset 2026-08-04. Available Wikidata fields were verified in the same run.
GeoNames data: CC BY 4.0. Wikidata labels and descriptions: CC0 1.0.