Gunung Sitoli City Population: 137,730 (2023 data)

Gunung Sitoli City's population was recorded at 137,730 in 2023, showing an increase compared to previous data. However, the Compound Annual Growth Rate (CAGR) over the past five years was lower, recording a -0.22% growth.

Compared to other regencies/cities in North Sumatra province, Gunung Sitoli City ranks 30th in population. Nationally, considering all islands, it ranks 131st.

According to 2023 data from the Central Bureau of Statistics (BPS), 88,657 people, or approximately 64.28% of Gunung Sitoli City's population, are in the productive age group (15-59 years). Children aged 0-14 years account for 27.68% (approximately 38,177), while 8.04% of the population is aged 60 and above.

The following is the population distribution by age group in Gunung Sitoli City as of June 2023, sourced from the Central Bureau of Statistics (BPS) publication:

* Age 0-4 years: 8,940 (6.49%)
* Age 5-9 years: 13,450 (9.76%)
* Age 10-14 years: 15,790 (11.46%)
* Age 15-19 years: 15,280 (11.09%)
* Age 20-24 years: 13,290 (9.65%)
* Age 25-29 years: 10,900 (7.91%)
* Age 30-34 years: 9,740 (7.07%)
* Age 35-39 years: 10,810 (7.85%)
* Age 40-44 years: 9,760 (7.09%)
* Age 45-49 years: 7,790 (5.66%)
* Age 50-54 years: 6,160 (4.47%)
* Age 55-59 years: 4,940 (3.59%)
* Age 60-64 years: 4,150 (3.01%)
* Age 65-69 years: 3,070 (2.23%)
* Age 70-74 years: 1,930 (1.40%)
* Age 75 years and older: 1,950 (1.42%)