The following shows the percentage of unmarried people by age in Japan. It is the data from national population census 2010. unit: %
| age | men (%) | women (%) |
| 15-19 | 99.7 | 99.4 |
| 20-24 | 94.0 | 89.6 |
| 25-29 | 71.8 | 60.3 |
| 30-34 | 47.3 | 34.5 |
| 35-39 | 35.6 | 23.1 |
| 40-44 | 28.6 | 17.4 |
| 45-49 | 22.5 | 12.6 |
| 50-54 | 17.8 | 8.7 |
| 55-59 | 14.7 | 6.5 |
| 60-64 | 10.3 | 5.5 |
| 65-69 | 6.1 | 4.5 |
| 70-74 | 3.8 | 4.0 |
| 75-79 | 2.4 | 4.0 |
| 80-84 | 1.6 | 4.1 |
| 85 and more | 1.0 | 2.9 |
Source is Statistics Bureau.
平成22年国勢調査 最終報告書「日本の人口・世帯」統計表
第4表 配偶関係（4区分），年齢（5歳階級），男女別15歳以上人口 － 全国（大正9年～平成22年）
www.e-stat.go.jp/SG1/estat/List.do?bid=000001053739&cycode=0
www.e-stat.go.jp/SG1/estat/GL08020103.do?_xlsDownload_&fileId=000006894899&releaseCount=2
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