Aba

Source identity and administrative path

The source row behind Aba is GeoNames ID 2353151. Its recorded administrative path is Aba South → Abia State → Nigeria, and GeoNames classifies the place as a second-order administrative seat.

Aba 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 2024-01-18; 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, Aba ranks 466 by recorded population. Inside the 30 selected Nigeria entries it ranks 9; inside the 243 entries in its broad region it ranks 96.

Its 1,160,000 population value is 1.25 times the 930,000 median for the country cohort and 1.29 times the 902,588 regional median. Aba sits in the second quarter of this atlas's Nigeria population cohort.

Aba'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

Aba's three nearest other atlas coordinates are Port Harcourt at 53.584 km with 2,120,000 recorded people; Owerri at 55.862 km with 545,000 recorded people; Calabar at 107.626 km with 540,000 recorded people. The closest-to-farthest distance spread is 54.042 km. Compared with Port Harcourt, Aba's recorded population is 0.55 times as large. Against Aba, Port Harcourt follows Port-Harcourt → Rivers State → Nigeria in the source. Its point has lower latitude and lower longitude; it belongs to the same selected Nigeria cohort, uses the shared Africa/Lagos identifier, and carries first-order administrative seat rather than second-order administrative seat.

Its recorded population is above Aba's. Against Aba, Owerri follows Owerri Municipal → Imo State → Nigeria in the source. Its point has higher latitude and lower longitude; it belongs to the same selected Nigeria cohort, uses the shared Africa/Lagos identifier, and carries first-order administrative seat rather than second-order administrative seat. Its recorded population is below Aba's. Against Aba, Calabar follows Calabar Municipal → Cross River State → Nigeria in the source.

Its point has lower latitude and higher longitude; it belongs to the same selected Nigeria cohort, uses the shared Africa/Lagos identifier, and carries first-order administrative seat rather than second-order administrative seat. Its recorded population is below Aba's. Its nearest-neighbor distance ranks 470 of 1,206 from shortest to longest in the same snapshot. Aba'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 2353151, the coordinate pair 5.1066 / 7.3667, country rank 9 of 30, and neighbor GeoNames 2324774 at 53.584 km bind Aba 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

Aba's reference point is 5.1066° north and 7.3667° east. The IANA identifier Africa/Lagos is shared by 30 city rows in this catalog, while the GeoNames class PPLA2 is shared by 341 rows. Aba's row carries both second- and first-order administrative labels.

Aba's point falls in the near-equatorial coordinate band used by this atlas's row checks. Aba's time-zone field defines the narrower catalog cohort; its place class is shared more broadly. GeoNames supplies no elevation for Aba, 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.