NationStates

Largest city by land size: Ashi, CY (160.93 km²)
Smallest city by land size: Hiraeth, MAI (10 km²)
Largest city by population: Trecset, KA (91,840)
Smallest city by population: Hiraeth, MAI (90)
Oldest city: Wist, KP (c. 1700 BCE)
Youngest city: Alygn, MAI (1854)
City with highest crime rate: Memori, MAI
City with lowest crime rate: Cei, JA
Most economically productive city: Ashi, CY
Most environmentally friendly city: Cei, JA
City that attracts the most tourism: Ascent, SN
City with the smartest citizens: Cei, JA (IQ 125)
City with the healthiest citizens: Anachroni, KA
City with the wealthiest citizens: Ibon, PS

Largest city in land area: Newlandiq City(~100 or ~200 square km)
Smallest city in land area: Streetville(0.24 square km)
Most populated city: Newlandiqia(2.96 million people)
Least populated city: Streetville(36 people)
Oldest city: Barenta
Youngest city: Capita(Founded ~ 2 months ago)
City with highest crime rate: Urja
City with lowest crime rate: Cookieville
Most economically productive city: Cookieville
Most enviromentally friendly city: Cleania
City that atrracts the most tourism: Newlandiqia
City with the smartest citizens: Quiz or Newlandiq City (debated)
City with the healthiest citizens: Newlandiq City
City with the wealthiest citizens: Cookieville

Largest city by land size: Sranamap [94.54 sq mi (244.87 km²)]
Smallest city by land size: Jwanoi [0.448 sq mi (1.160 km²) *organized cities only counted
Largest city by population: Sranamap (664,721)
Smallest city by population: Jwanoi (3) *organized cities only counted
Oldest city: Wrójehenéé (est. ca. 472 BCE)
Youngest city: Iwrésswe (inc. 2023)
City with highest crime rate: Sranamap
City with lowest crime rate: Jwanoi
Most economically productive city: Sranamap
Most environmentally friendly city: Sranamap
City that attracts the most tourism: Wrójehenéé
City with the smartest citizens: Sranamap
City with the healthiest citizens: Dwengree
City with the wealthiest citizens: Iwrésswe

Largest city by land size: Dragon City
Smallest city by land size: Settlement 03
Largest city by population: Dragon city
Smallest city by population: Settlement 03
Oldest city: Settlement 01
Youngest city: New ohio
City with highest crime rate: An unnamed random town in the countryside
City with lowest crime rate:
Most economically productive city: New ohio
Most environmentally friendly city: New ohio
City that attracts the most tourism: New ohio
City with the smartest citizens: Settlement 03
City with the healthiest citizens: Settlement 01
City with the wealthiest citizens: New ohio

Largest city by land size: Steepole (synonymous with the Hakushiyan Federal Union Territory)
Smallest city by land size: Monaimo (in the State of Harimon)
Largest city by population: Backlamb (in the State of Juchow)
Smallest city by population: Bukit Hijau (in the State of Kanatkon)
Oldest city: Bellevue (in the State of Tuzkiny)
Youngest city: Avoy (in the State of Avadong)
City with highest crime rate: Kyungwon (in the State of Taykook)
City with lowest crime rate: Sinmah (in the State of Ghertson)
Most economically productive city: Hoonoh (in the State of Chiansuey)
Most environmentally friendly city: Mroma (in the State of Avadong)
City that attracts the most tourism: Lubkilov (in the State of Lubkilia)
City with the smartest citizens: Chunchew (in the State of Taykook)
City with the healthiest citizens: Manao (in the State of Avadong)
City with the wealthiest citizens: Tunghin (in the State of Juchow)
City that received Hakushiyan color television the earliest: Kyungwon (in the State of Taykook)
City that built Hakushiya’s first airplane: Manao (in the State of Avadong)
City that hosted Hakushiya’s first ever talent show: Backlamb (in the State of Juchow)