Source identity and administrative path
The source row behind Putuo is GeoNames ID 1798439. Its recorded administrative path is Shanghai Municipality → Shanghai → China, and GeoNames classifies the place as a populated place. Putuo 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 2026-03-31; 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, Putuo ranks 421 by recorded population. Inside the 296 selected China entries it ranks 138; inside the 632 entries in its broad region it ranks 247. Its 1,239,100 population value is 1.06 times the 1,165,375 median for the country cohort and 1.23 times the 1,008,426 regional median. Putuo sits in the second quarter of this atlas's China population cohort. Putuo'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
Putuo's three nearest other atlas coordinates are Changning at 4.78 km with 694,900 recorded people; Shanghai at 7.244 km with 24,874,500 recorded people; Xuhui at 8.201 km with 1,109,800 recorded people. The closest-to-farthest distance spread is 3.421 km. Compared with Changning, Putuo's recorded population is 1.78 times as large. Against Putuo, Changning follows Shanghai Municipality → Shanghai → China in the source. Its point has lower latitude and higher longitude; it belongs to the same selected China cohort, uses the shared Asia/Shanghai identifier, and carries third-order administrative seat rather than populated place. Its recorded population is below Putuo's. Against Putuo, Shanghai follows Shanghai Municipality → Shanghai → China in the source. Its point has lower latitude and higher longitude; it belongs to the same selected China cohort, uses the shared Asia/Shanghai identifier, and carries first-order administrative seat rather than populated place. Its recorded population is above Putuo's. Against Putuo, Xuhui follows Shanghai Municipality → Shanghai → China in the source. Its point has lower latitude and higher longitude; it belongs to the same selected China cohort, uses the shared Asia/Shanghai identifier, and carries third-order administrative seat rather than populated place. Its recorded population is below Putuo's. Its nearest-neighbor distance ranks 40 of 1,206 from shortest to longest in the same snapshot. Putuo's nearest-coordinate gap belongs to the tightest tenth 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 1798439, the coordinate pair 31.2510 / 121.3897, country rank 138 of 296, and neighbor GeoNames 1815611 at 4.78 km bind Putuo 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
Putuo's reference point is 31.2510° north and 121.3897° east. The IANA identifier Asia/Shanghai is shared by 291 city rows in this catalog, while the GeoNames class PPL is shared by 243 rows. Putuo's row carries both second- and first-order administrative labels. Putuo's point falls in the middle-latitude coordinate band used by this atlas's row checks. Putuo's place-class field defines the narrower catalog cohort; its time zone is shared more broadly. GeoNames supplies no elevation for Putuo, 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
- Putuo · GeoNames 1798439 · no verified Wikidata entity
- Name scope
- Putuo · 1 atlas row share this source label · qualifier not required
- Administrative chain
- Shanghai Municipality · Shanghai · China
- Coordinate signature
- 31.2510° N · 121.3897° E
- Population snapshot
- 1,239,100 · atlas rank 421 of 1,206
- Country comparison
- China rank 138 of 296 · median 1,165,375 · ratio 1.06×
- Regional comparison
- Asia rank 247 of 632 · median 1,008,426 · ratio 1.23×
- Time-zone cohort
- Asia/Shanghai · 291 of 1,206 atlas rows
- Place-class cohort
- PPL populated place · 243 of 1,206 rows
- Elevation field
- Putuo · missing in GeoNames
- Nearest reference
- Changning · 4.78 km · population 694,900 · atlas rank 791
- Second reference
- Shanghai · 7.244 km · population 24,874,500 · atlas rank 1
- Third reference
- Xuhui · 8.201 km · population 1,109,800 · atlas rank 488
- Neighbour geometry
- Putuo · nearest-distance rank 40 of 1,206 · three-reference spread 3.421 km
- Source dates
- Putuo row updated 2026-03-31 · atlas dataset checked 2026-08-04