factually
Index/Topics/Census Data Limitations

Census Data Limitations

The limitations of census data in measuring religious affiliation and practice, as highlighted by the Office for National Statistics.

Fact-Checks

2 results
Jan 31, 2026
Most Viewed

What does the UK Office for National Statistics publish about religious affiliation trends and how do they compare to these projections?

publishes detailed census-based data showing a clear, recent decline in people who identify as and a concurrent rise in those reporting no religion and in some minority faiths; the 2021 census placed ...

Jan 29, 2026

What methods do researchers use to estimate religious populations in U.S. cities given the census restriction on religious questions?

Researchers reconstruct religious populations in by stitching together denominational and congregational reports, large-scale surveys, administrative records and statistical modeling — because the is ...