Place comparison
New Taipei City compared with Taipei City: area, population and density
New Taipei City has about 7.55 times Taipei City’s land and about 1.66 times its registered residents; Taipei City is about 4.6 times as dense. Together they cover 2,324 km².
Equal-area outline comparison
Outlines are centered and scaled by official land area; position does not show geographic location.
Area
Population
Population density
Area data date
Population data date
:
:
The guide below belongs to this pair: New Taipei City and Taipei City. Change the selector above and the page follows, so the reading always matches the tool.
Direct answer
How different are New Taipei City and Taipei City?
New Taipei City covers 2,052.6 km²; New Taipei City's area is 7.55 times Taipei City's. Its reported population is 4,044,831; New Taipei City's population is 1.66 times Taipei City's. By average density, New Taipei City's population density is about 22% of Taipei City's.
Population difference
New Taipei City's population is 1.66 times Taipei City's 4,044,831 · 2,439,507Density difference
New Taipei City's population density is about 22% of Taipei City's 1,970.6 /km² · 8,975.4 /km²Full data and sources for each place: New Taipei City area & population, Taipei City area & population
Straight-line distance between geometric centres: about 12 km; time difference: none.
On a familiar scale
- New Taipei City ≈ 70% of Kaohsiung City (reference rung) 507 m² of land per resident
- Taipei City ≈ 1.79 × Kinmen County (reference rung) 111 m² of land per resident
Reference scales come from Department of Household Registration, Ministry of the Interior: Land area, households and population density by township and district (year-end 2025) , as of 2025-12-31.
How to read it
One continuous urban area split by an administrative line: Taipei City is the dense core, New Taipei the ring around it, including a great deal of mountain land.
Geography and shape
Taipei City occupies the heart of the Taipei Basin and lies entirely inside New Taipei, which rings it from the Tamsui River mouth and the northern coast to the mountains of Wulai and Pinglin in the south and east. Keelung City, on the northeast coast, is separate from both.
Population context
Taipei City has 2,439,507 registered residents on 271.7997 km², about 8,975 per km². New Taipei has 4,044,831 on 2,052.5667 km², about 1,971 per km². Together: 6,484,338 people on 2,324.3664 km², about 2,790 per km².
Boundaries and definitions
Both cities use land area and registered residents at year-end 2025 from the same Ministry of the Interior table, so the ratios are like for like. Registered residence can differ from where people live and work, which matters for the large number of people who commute across the city line every day.
New Taipei City: New Taipei City, the special municipality alone, at year-end 2025: 2,052.5667 km² of land and 4,044,831 registered residents, both from the same Ministry of the Interior table used for Taipei City, so the density is like for like. It excludes Taipei City, which New Taipei surrounds on every side — the hole in the outline is Taipei City — and it excludes Keelung City to the northeast. Together, the two cities often called “Taipei” in everyday speech cover 2,324.3664 km² with 6,484,338 residents. The outline is GADM 4.1’s New Taipei polygon, which measures about 2,057.8 km² against the official 2,052.5667 (+0.25%); GADM also attaches two islets that belong to Keelung (Pengjia and Mianhua, about 1.6 km² together), and those are dropped from the drawing. GADM is licensed for non-commercial use only; Atlas is not commercialised. Population is household registration, not resident presence.
Taipei City: Taipei City, the special municipality alone. Area and registered population come from the same Ministry of the Interior table at the same year-end 2025 reference date, so the density is like for like. The figure excludes New Taipei City: “Taipei” in everyday speech often means the two cities together (2,324.3664 km², 6,484,338 residents) or the wider metropolitan area, which has no single official boundary. Population is household registration, not resident presence.
In-depth guide
How should New Taipei City and Taipei City be understood in context?
New Taipei is about 7.55 times Taipei City by land and has about 1.66 times its registered population, yet Taipei City is about 4.6 times as dense. The two municipalities are one continuous urban area split by an administrative line, which is why “how big is Taipei” has no single answer.
One city inside the other
Taipei City, 271.7997 km², sits entirely inside New Taipei, 2,052.5667 km². Together they cover 2,324.3664 km² with 6,484,338 registered residents at year-end 2025, both figures from the same Ministry of the Interior table. Taipei City is about 11.7% of that combined land but holds about 37.6% of its people.
Why Taipei City looks so much denser
Taipei City averages about 8,975 per km², New Taipei about 1,971. Most of the gap is land, not people: New Taipei includes more than 850 km² of mountain districts — Wulai, Pinglin, Shiding, Shuangxi and Pingxi — with barely 30,000 residents between them. The riverside districts on New Taipei’s side of the line, such as Yonghe at about 37,000 per km² and Luzhou at about 26,400, are denser than Taipei City’s own average.
Questions people ask
About this geographic comparison
Which is bigger, New Taipei City or Taipei City?
New Taipei City is bigger, with a land area about 7.55× that of Taipei City (2,052.6 vs 271.8 km²).
How do New Taipei City and Taipei City differ in area, population and density?
New Taipei City is 7.55× the size of Taipei City — 2,052.6 km² vs 271.8 km². Population is 1.66× higher; average density is 22% as high. Each side’s scope and reference date are set out under “Boundaries and definitions” on this page.
What is the combined area of Taipei City and New Taipei City?
2,324.3664 km² at year-end 2025 — Taipei City 271.7997 plus New Taipei 2,052.5667 — with 6,484,338 registered residents between them.
Why is Taipei City so much denser than New Taipei?
Mostly because of land, not people. New Taipei includes more than 850 km² of mountain districts with only about 30,000 residents. Its riverside districts next to Taipei — Yonghe, Luzhou, Banqiao, Sanchong — are as dense as or denser than Taipei City itself.
Sources
- Department of Household Registration, Ministry of the Interior: Land area, households and population density by township and district (year-end 2025, ROC 114)
- Department of Household Registration, Ministry of the Interior: Land area, households and population density by township and district (year-end 2025, ROC 114)
- Department of Household Registration, Ministry of the Interior: Land area, households and population density by township and district (year-end 2025, ROC 114)
- Department of Household Registration, Ministry of the Interior: Land area, households and population density by township and district (year-end 2025, ROC 114)
Outline data:
- GADM 4.1 · Free for academic and other non-commercial use; redistribution or commercial use requires permission
- © OpenStreetMap contributors · ODbL · source feature