Poverty and living standards in Koga, Japan: official figures
31.0% of private households in Koga were one-person households at the 2020 census (17,361), 57th lowest of 262 cities, below the national figure (38.0%).
How many older people live alone in Koga?
10.8% of private households in Koga were people aged 65 or over living alone at the 2020 census (6,052 households), 92nd lowest of 262 cities, below the national figure (12.1%).
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow many elderly couples live alone in Koga?
6,622 households in Koga were couples living alone together with the husband aged 65 or over and the wife 60 or over, and 14,321 were nuclear-family households including someone aged 65 or over (2020 census).
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow many people rent their home in Koga?
25.6% of occupied homes in Koga were rented in 2023 (14,490 of 56,520) and 71.4% were owned, with rented share 57th lowest of 262 cities.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow big are homes in Koga?
The average home in Koga had 104.8 square metres of floor space in 2023, 68th highest of 262 cities.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow many homes in Koga lack flush toilets?
7,715 residents of Koga (about 5.5% of the population) were not on flush toilets in 2023: they used vault toilets emptied by the municipality or treated waste themselves.
Source: Statistics Bureau of Japan, Ministry of Internal Affairs and Communications · saved copyHow Koga compares with other cities in Japan
Older people (65+) living alone, share of private households (2020 census)
Koga ranks 171 of 262, highest first.
| Rank | City | Older people (65+) living alone, share of private households |
|---|---|---|
| 168 | Chiba | 10.8% |
| 169 | Okayama | 10.8% |
| 170 | Fujisawa | 10.8% |
| 171 | Koga | 10.8% |
| 172 | Nagaoka | 10.8% |
| 173 | Kasugai | 10.7% |
| 174 | Tottori | 10.7% |
Rented homes, share of occupied homes (2023)
Koga ranks 206 of 262, highest first.
| Rank | City | Rented homes, share of occupied homes |
|---|---|---|
| 203 | Matsusaka | 25.9% |
| 204 | Kamagaya | 25.9% |
| 205 | Iwakuni | 25.8% |
| 206 | Koga | 25.6% |
| 207 | Imabari | 25.6% |
| 208 | Marugame | 25.5% |
| 209 | Joetsu | 25.3% |
Average floor space per home (square metres) (2023)
Koga ranks 68 of 262, highest first.
| Rank | City | Average floor space per home (square metres) |
|---|---|---|
| 65 | Tsu | 105.7 |
| 66 | Iwaki | 105.6 |
| 67 | Kumagaya | 105.1 |
| 68 | Koga | 104.8 |
| 69 | Iwakuni | 104.8 |
| 70 | Ichinomiya | 104.7 |
| 71 | Ota | 104.7 |
More on Koga: overview · economy and jobs · health · education and schools · government budget · all cities in Japan
Sources
- Statistics Bureau of Japan, Ministry of Internal Affairs and Communications: Statistical Observations of Municipalities 2026 (social and demographic statistics, city, ward, town and village data), read 28 October 2026 · saved copy (SHA-256 2cb3d8c51aa1…)
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