San Marino Rate of Natural Increase

San Marino, one of the smallest countries in Europe, has a notably low rate of natural increase (RNI) in its population growth, reflecting broader demographic trends seen across much of Southern Europe. As of recent data, San Marino's RNI is close to zero or slightly negative, indicating that the number of births barely matches or falls below the number of deaths, resulting in little to no natural population growth. This pattern is similar to its neighboring countries, Italy and, to a lesser extent, the nearby regions of Switzerland, which also experience low or negative RNIs due to aging populations and declining birth rates. However, while Italy’s RNI is negative and among the lowest in Europe, San Marino's small population size makes its demographic shifts more volatile year-to-year. In contrast, Switzerland, though also facing an aging population, maintains a slightly higher RNI, partly offset by higher immigration rates. Overall, San Marino’s demographic situation mirrors the challenges faced by its neighbors: low fertility, an aging populace, and the need for policy responses to sustain population levels.

YearRate of Natural IncreasePopulation
19950.23424,883
20000.37727,079
20050.21929,605
20100.13431,467
20150.0333,010
2020-0.00934,247
20240.00935,095
20250.01435,291
20260.01235,481
2030-0.00336,158
2035-0.06336,771
2040-0.14937,050
2045-0.24936,966
2050-0.34536,514
2055-0.43635,800
2060-0.49834,963
2065-0.52534,070
2070-0.51633,192
2075-0.50132,362
2080-0.50131,564
2085-0.52630,765
2090-0.57429,932
2095-0.61929,051
2100-0.63628,149

Data from US Census International Database