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Population in Sejny Municipality 2025
In 2024, Sejny municipality ranked 2115 of 2,478 Polish municipalities. Population shrank by 229 residents -5.71% between 2019-2024, at 3,778.
Among 1984 declining municipalities, in bottom 50% for rate of decline. Within Sejneński county, ranked 3 of 5 municipalities.
Based on 31 years of official GUS statistics for Sejneński county municipalities within Podlaskie province.
Total Population
-0.66
%
since
2023
2024
3,778
Total Population Chart
Lowest at 3,778 in 2024
Highest at 4,383 in 1995
1995
29 years (+5 year forecast)
2024
Ranking
2115/2478 Municipality in Poland
2112
Radzanów
3,798
2113
Abramów
3,795
2114
Sławoborze
3,783
2115
Sejny
3,778
2116
Wodzierady
3,772
2117
Tereszpol
3,771
2118
Osiek
3,770
2120
Mietków
3,760
Page 212 of 248
Change
1270/2478 Municipality in Poland
1261
Tarłów
-0.7%
1262
Kutno
-0.7%
1263
Skoroszyce
-0.7%
1265
Władysławów
-0.7%
1267
Sułoszowa
-0.7%
1268
Regimin
-0.7%
1269
Izabelin
-0.7%
1270
Sejny
-0.7%
Page 127 of 248
Population Density
-0.57
%
since
2023
2024
17.4
per km²
Vital Statistics
births and deaths
Live Births
+13.64
%
since
2023
2024
25
Deaths
+9.76
%
since
2023
2024
45
Age Structure
children, working age, and elderly
Children (0-14)
-2.68
%
since
2023
2024
509
Working Age (15-64)
-0.79
%
since
2023
2024
2,497
Elderly (65+)
+1.18
%
since
2023
2024
772
Gender
Men
-0.67
%
since
2023
2024
1,931
Women
-0.65
%
since
2023
2024
1,847
Age Distribution
from 0 to 75+ years
0-4 years
-6.62
%
since
2023
2024
127
5-9 years
-5.47
%
since
2023
2024
190
10-14 years
+3.23
%
since
2023
2024
192
15-19 years
+0.50
%
since
2023
2024
202
20-24 years
-1.38
%
since
2023
2024
214
25-29 years
-4.37
%
since
2023
2024
219
30-34 years
-2.86
%
since
2023
2024
238
35-39 years
-2.24
%
since
2023
2024
262
40-44 years
-0.35
%
since
2023
2024
287
45-49 years
+0.38
%
since
2023
2024
267
50-54 years
-0.65
%
since
2023
2024
308
55-59 years
+6.01
%
since
2023
2024
247
60-64 years
-2.69
%
since
2023
2024
253
65-69 years
+0.87
%
since
2023
2024
231
70-74 years
+3.68
%
since
2023
2024
197
75-79 years
+14.55
%
since
2023
2024
63
80-84 years
+5.00
%
since
2023
2024
105
85+ years
-10.53
%
since
2023
2024
102