Regional Statistics
17,762
56
people/km²
47,742
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Population in Sierpecki County 2026
Sierpecki county ranks 300 of 380 Polish counties. Population shrank by 4,212 residents -8.11% between 2019-2024, now at 47,742.
Among 339 declining counties, in the bottom 20% for rate of decline. Within Masovian province, ranks 32 of 42 counties.
Based on 31 years of official GUS statistics for Sierpecki county and its 7 municipalities within Masovian province.
Total Population
-1.07
%
since
2023
2024
47,742
Total Population Chart
Lowest at 47,742 in 2024
Highest at 56,654 in 1995
1995
29 years (+5 year forecast)
2024
Ranking
300/380 County in Poland
291
Bielski
49,987
293
Łomżyński
49,496
294
Wałecki
49,384
297
Łaski
48,498
299
Opatowski
47,876
300
Sierpecki
47,742
Page 30 of 38
Change
320/380 County in Poland
311
Opolski
-1.0%
315
Grajewski
-1.1%
316
Płock
-1.1%
317
Krosno
-1.1%
318
Kutnowski
-1.1%
319
Giżycki
-1.1%
320
Sierpecki
-1.1%
Page 32 of 38
Population Density
-1.06
%
since
2023
2024
56.0
per km²
Vital Statistics
births and deaths
Live Births
-4.53
%
since
2023
2024
358
Deaths
+5.42
%
since
2023
2024
622
Age Structure
children, working age, and elderly
Children (0-14)
-3.20
%
since
2023
2024
7,008
Working Age (15-64)
-1.46
%
since
2023
2024
31,303
Elderly (65+)
+1.95
%
since
2023
2024
9,431
Gender
Men
-1.15
%
since
2023
2024
23,558
Women
-0.99
%
since
2023
2024
24,184
Age Distribution
from 0 to 75+ years
0-4 years
-6.63
%
since
2023
2024
1,916
5-9 years
-1.11
%
since
2023
2024
2,489
10-14 years
-2.55
%
since
2023
2024
2,603
15-19 years
+2.49
%
since
2023
2024
2,797
20-24 years
-4.15
%
since
2023
2024
2,636
25-29 years
-2.40
%
since
2023
2024
2,767
30-34 years
-4.53
%
since
2023
2024
3,037
35-39 years
-1.03
%
since
2023
2024
3,279
40-44 years
-2.73
%
since
2023
2024
3,567
45-49 years
+1.65
%
since
2023
2024
3,458
50-54 years
-0.31
%
since
2023
2024
3,226
55-59 years
-1.52
%
since
2023
2024
3,229
60-64 years
-2.04
%
since
2023
2024
3,307
65-69 years
+1.89
%
since
2023
2024
3,243
70-74 years
+0.04
%
since
2023
2024
2,540
75-79 years
+13.61
%
since
2023
2024
668
80-84 years
-3.12
%
since
2023
2024
964
85+ years
-1.28
%
since
2023
2024
1,000