Historical Records
Historical Attestation
The source, quoting the Xu Tongzhi clan records, states that people with the surname 涳 existed in Panyu, Guangdong, during the Ming period; the webpage also summarizes this as “in the Ming period, this surname existed in Panyu, Guangdong.” This establishes historical documentary attestation, not a modern population count.
Reference: 涳姓_涳姓的来源和历史_百家姓
Research Notes
Reading and Evidence Limits
The page records readings including kōng, náng, qiāng, kòng, and nòng, while explicitly treating some variant readings as provisional for reference. Regarding nòng, it also cites a dictionary view that 涳 has no such reading. These readings therefore should not be treated as uniformly verified current pronunciations.
Reference: 涳姓_涳姓的来源和历史_百家姓