Data Engineering• 6 min read• Published Sep 2026
Census 2011 Codes vs LGD Codes: Resolving Administrative Boundaries in Indian Data
How historical 2001/2011 Census codes map to active Local Government Directory identifiers across 784 reorganized districts in India.
Why 2011 Census Codes Are Outdated
Between the 2011 Census and 2026, the administrative landscape of India expanded dramatically:
• Districts grew from 640 in Census 2011 to 784 active revenue districts today.
• The creation of Telangana (2014) and reorganization of Jammu & Kashmir (2019) altered dozens of district boundaries.
• State governments reorganized hundreds of sub-districts to reduce travel distances to revenue collectorates.
LGD to Census Mapping in API
The /v1/states endpoint cross-references LGD codes with both Census 2001 and Census 2011 codes, allowing developers to correlate historical data without building manual translation tables.
Code Example: Resolving Legacy Records
const res = await fetch('https://india-lgd-index-api.vercel.app/v1/states');
const { data: states } = await res.json();
const state = states.find(s => s.census_2011_code === '32');
console.log('Resolved LGD Code:', state.code); // 32 (Kerala)Indexed SEO Keywords:
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