Monterrey at a glance
- Monterrey runs 108.6 men per 100 women aged 20–39, measured at municipality level.
- That is the 3rd-highest of the 17 Mexico cities we track.
- Mexico's national figure is 97.4, so Monterrey runs 11 above the country as a whole.
- Between 15 and 49 it peaks at 110.4 around ages 30–34 and bottoms at 87.6 around 45–49.
- It stops being men-heavy at ages 40–44, where it falls to 94.4.
Every line is computed from the age table below. Green holds more women per man.
Men per 100 women, by age band
Every row is Monterrey's own count at municipality level. Female surplus is women minus men, in people, so a positive number means more women in that band. Green holds more women, red more men.
| Age band | Men per 100 women | Men | Women | Female surplus |
|---|---|---|---|---|
| 0–4 | 105.4 | 38,593 | 36,627 | -1,966 |
| 5–9 | 105.6 | 36,809 | 34,842 | -1,967 |
| 10–14 | 104.6 | 38,203 | 36,526 | -1,677 |
| 15–19 | 104.4 | 43,865 | 42,016 | -1,849 |
| 20–24 | 107.8 | 49,252 | 45,679 | -3,573 |
| 25–29 | 110.3 | 48,462 | 43,950 | -4,512 |
| 30–34 | 110.4 | 44,706 | 40,503 | -4,203 |
| 35–39 | 105.8 | 39,832 | 37,659 | -2,173 |
| 40–44 | 94.4 | 35,573 | 37,685 | +2,112 |
| 45–49 | 87.6 | 35,302 | 40,297 | +4,995 |
| 50–54 | 87 | 35,772 | 41,136 | +5,364 |
| 55–59 | 88.5 | 32,805 | 37,049 | +4,244 |
| 60–64 | 87.6 | 28,546 | 32,584 | +4,038 |
| 65–69 | 86.1 | 23,457 | 27,231 | +3,774 |
| 70–74 | 79.3 | 17,205 | 21,684 | +4,479 |
| 75–79 | 76.6 | 12,628 | 16,477 | +3,849 |
| 80+ | 67.6 | 14,526 | 21,497 | +6,971 |
Census age-by-sex counts. Figures for 2024. Data updated August 6, 2026. A ratio is a supply number, not a measure of dating success.
Monterrey population pyramid
The same counts as the table below, drawn. A ratio is one number per band; the pyramid shows how many people that band actually holds.
Monterrey: men left, women right, one bar per five-year band. Only the surplus tip is shaded: dark blue = more men, orange = more women. The muted base is the matched part.
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