Source identity and administrative path
The source row behind Tiruchirappalli is GeoNames ID 1254388. Its recorded administrative path is Tiruchirappalli → Tamil Nadu → India, and GeoNames classifies the place as a populated place. Tiruchirappalli 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 2024-01-06; 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, Tiruchirappalli ranks 535 by recorded population. Inside the 109 selected India entries it ranks 54; inside the 632 entries in its broad region it ranks 312. Its 1,022,518 population value is 1.02 times the 1,001,694 median for the country cohort and 1.01 times the 1,008,426 regional median. Tiruchirappalli sits in the second quarter of this atlas's India population cohort. Tiruchirappalli'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
Tiruchirappalli's three nearest other atlas coordinates are Kallakurichi at 106.053 km with 1,682,687 recorded people; Salem at 110.323 km with 917,414 recorded people; Madurai at 117.984 km with 1,465,625 recorded people. The closest-to-farthest distance spread is 11.931 km. Compared with Kallakurichi, Tiruchirappalli's recorded population is 0.61 times as large. Against Tiruchirappalli, Kallakurichi follows Kallakurichi district → Tamil Nadu → India in the source. Its point has higher latitude and higher longitude; it belongs to the same selected India cohort, uses the shared Asia/Kolkata identifier, and carries second-order administrative seat rather than populated place. Its recorded population is above Tiruchirappalli's. Against Tiruchirappalli, Salem follows Salem → Tamil Nadu → India in the source. Its point has higher latitude and lower longitude; it belongs to the same selected India cohort, uses the shared Asia/Kolkata identifier, and carries the same populated place class. Its recorded population is below Tiruchirappalli's. Against Tiruchirappalli, Madurai follows Madurai → Tamil Nadu → India in the source. Its point has lower latitude and lower longitude; it belongs to the same selected India cohort, uses the shared Asia/Kolkata identifier, and carries second-order administrative seat rather than populated place. Its recorded population is above Tiruchirappalli's. Its nearest-neighbor distance ranks 720 of 1,206 from shortest to longest in the same snapshot. Tiruchirappalli'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 1254388, the coordinate pair 10.8155 / 78.6965, country rank 54 of 109, and neighbor GeoNames 12165956 at 106.053 km bind Tiruchirappalli 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
Tiruchirappalli's reference point is 10.8155° north and 78.6965° east. The IANA identifier Asia/Kolkata is shared by 109 city rows in this catalog, while the GeoNames class PPL is shared by 243 rows. Tiruchirappalli's row carries both second- and first-order administrative labels. Tiruchirappalli's point falls in the near-equatorial coordinate band used by this atlas's row checks. Tiruchirappalli's time-zone field defines the narrower catalog cohort; its place class is shared more broadly. GeoNames supplies no elevation for Tiruchirappalli, 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
- Tiruchirappalli · GeoNames 1254388 · Q207754
- Name scope
- Tiruchirappalli · 1 atlas row share this source label · qualifier not required
- Administrative chain
- Tiruchirappalli · Tamil Nadu · India
- Coordinate signature
- 10.8155° N · 78.6965° E
- Population snapshot
- 1,022,518 · atlas rank 535 of 1,206
- Country comparison
- India rank 54 of 109 · median 1,001,694 · ratio 1.02×
- Regional comparison
- Asia rank 312 of 632 · median 1,008,426 · ratio 1.01×
- Time-zone cohort
- Asia/Kolkata · 109 of 1,206 atlas rows
- Place-class cohort
- PPL populated place · 243 of 1,206 rows
- Elevation field
- Tiruchirappalli · missing in GeoNames
- Nearest reference
- Kallakurichi · 106.053 km · population 1,682,687 · atlas rank 266
- Second reference
- Salem · 110.323 km · population 917,414 · atlas rank 599
- Third reference
- Madurai · 117.984 km · population 1,465,625 · atlas rank 329
- Neighbour geometry
- Tiruchirappalli · nearest-distance rank 720 of 1,206 · three-reference spread 11.931 km
- Source dates
- Tiruchirappalli row updated 2024-01-06 · atlas dataset checked 2026-08-04