Social Protection Research Series Ghana’s age structure: why a dependency ratio needs a programme-specific interpretation IDER Research Desk | 2026-09-12 Reference period: 2021 census Ghana’s 2021 census counted 10,890,453 children aged 0–14, 1,322,545 people aged 65 or older, and 18,619,021 people aged 15–64. These counts imply approximately 65.6 people in the younger and older groups for every 100 in the conventional working-age group. Children accounted for approximately 89.2% of the combined 0–14 and 65-plus population in the 2021 age-dependency calculation. Current-data companion — 19 September 2026 The refreshed GSS context shows 13.0% unemployment, 21.9% multidimensional poverty and 38.1% food insecurity for Q3 2025. These are separate survey indicators with different definitions; none re-estimates the census age structure or establishes programme eligibility. https://iderafrica.com/insights/ghana-current-data-business-decisions-september-2026 One ratio contains distinct needs The combined younger and older population is 12,212,998. Dividing that count by the working-age population gives the demographic ratio in this brief. Children constitute most of its numerator, but combining the groups in one indicator can conceal different support needs. A child-focused service and an older-person benefit have different eligibility rules, delivery arrangements and outcomes. The calculation therefore provides a population structure to examine, rather than a common policy prescription or an estimate of the number of people dependent on public transfers. Demographic dependence is not economic dependence Our interpretation is that the age ratio should be kept separate from evidence about livelihoods and care. Some people within working ages are students, unemployed or unable to work. Some older people earn income or provide care. An age count does not identify household income, disability, benefit receipt or the availability of support from relatives. It would be misleading to describe the denominator as employed taxpayers or to use the numerator as a count of poor people. Programme design needs those additional dimensions explicitly. Use the age profile to improve targeting research Begin with the programme’s actual purpose and eligibility conditions, then choose the relevant population denominator. For a child intervention, examine the required age band and school or household circumstances. For older-person support, investigate income sources, care needs and existing coverage. Compare programme registers with an updated geographic population frame, documenting inclusion and exclusion errors separately. Evaluation should connect delivery to the outcome the programme seeks to change. The census can structure that enquiry, while administrative and household evidence establish who currently needs support and whether services reach them. Method The age counts come from Ghana Statistical Service’s 18 November 2021 census release. The ratio is (10,890,453 + 1,322,545) / 18,619,021 × 100 = 65.6. The child share of the numerator is 10,890,453 / 12,212,998 × 100 = 89.2%. Calculations use counts rather than rounded percentage shares. No poverty threshold, benefit amount or programme coverage is inferred. Limitations These conventional age groups do not match every programme’s eligibility rules. Census counts describe 2021 and should not be relabelled as current beneficiaries. National ratios conceal geographic and household differences. This brief is an original demographic desk analysis, not an evaluation of a social-protection programme or a forecast of fiscal costs. Sources 2021 PHC — General Report Volumes 3A, 3B and 3C: release highlights Ghana Statistical Service https://census2021.statsghana.gov.gh/presspage.php?Pr=&readmorenews=MTY4OTA1MDkwNC4wOTY%3D Original editorial desk analysis prepared with AI assistance. No named human signoff or peer review is asserted.