1,206-CITY ATLASSOURCE-BACKED CITY REFERENCE
Nigeria
Compare this sourced profile of Port Harcourt, Nigeria 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 Port Harcourt—2,120,000, Africa/Lagos, 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: capital of Rivers State, Nigeria.
02This city's dataset fingerprint
The source row behind Port Harcourt is GeoNames ID 2324774. Its recorded administrative path is Port-Harcourt → Rivers State → Nigeria, and GeoNames classifies the place as a first-order administrative seat. Port Harcourt 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 2026-04-14; 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, Port Harcourt ranks 191 by recorded population. Inside the 30 selected Nigeria entries it ranks 5; inside the 243 entries in its broad region it ranks 38. Its 2,120,000 population value is 2.28 times the 930,000 median for the country cohort and 2.35 times the 902,588 regional median. Port Harcourt falls between the leading tenth and quarter of this atlas's Nigeria population cohort. Port Harcourt's recorded value reaches at least twice the country-cohort median in this snapshot. These comparisons describe this selected dataset only; they are not current census rankings or official urban-area boundaries.
Port Harcourt's three nearest other atlas coordinates are Aba at 53.584 km with 1,160,000 recorded people; Owerri at 78.558 km with 545,000 recorded people; Calabar at 146.926 km with 540,000 recorded people. The closest-to-farthest distance spread is 93.342 km. Compared with Aba, Port Harcourt's recorded population is 1.83 times as large. Against Port Harcourt, Aba follows Aba South → Abia State → Nigeria in the source. Its point has higher latitude and higher longitude; it belongs to the same selected Nigeria cohort, uses the shared Africa/Lagos identifier, and carries second-order administrative seat rather than first-order administrative seat. Its recorded population is below Port Harcourt's. Against Port Harcourt, Owerri follows Owerri Municipal → Imo State → Nigeria in the source. Its point has higher latitude and higher longitude; it belongs to the same selected Nigeria cohort, uses the shared Africa/Lagos identifier, and carries the same first-order administrative seat class. Its recorded population is below Port Harcourt's. Against Port Harcourt, Calabar follows Calabar Municipal → Cross River State → Nigeria in the source. Its point has higher latitude and higher longitude; it belongs to the same selected Nigeria cohort, uses the shared Africa/Lagos identifier, and carries the same first-order administrative seat class. Its recorded population is below Port Harcourt's. Its nearest-neighbor distance ranks 470 of 1,206 from shortest to longest in the same snapshot. Port Harcourt's nearest-coordinate gap sits in the second quarter 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 2324774, the coordinate pair 4.7774 / 7.0134, country rank 5 of 30, and neighbor GeoNames 2353151 at 53.584 km bind Port Harcourt to a reproducible comparison. That combined key distinguishes the row; it is not a recommendation or evidence of a physical connection.
Port Harcourt's reference point is 4.7774° north and 7.0134° east. The IANA identifier Africa/Lagos is shared by 30 city rows in this catalog, while the GeoNames class PPLA is shared by 429 rows. Port Harcourt's row carries both second- and first-order administrative labels. Port Harcourt's point falls in the near-equatorial coordinate band used by this atlas's row checks. Port Harcourt's time-zone field defines the narrower catalog cohort; its place class is shared more broadly. GeoNames supplies no elevation for Port Harcourt, 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
Port Harcourt's closest other entries in this atlas are Aba (53.584 km), Owerri (78.558 km), Calabar (146.926 km).
04Verify before you book
Before visiting Port Harcourt, confirm changing decisions with current first-party sources:
Read how City Atlas Club verifies changing travel facts →05Sources and freshness
GeoNames updated the row 2026-04-14; 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.