Most Popular Programming Languages — September 2026
Source:
TIOBE Index — September 2026
Key Findings
🏆
Python leads in TIOBE Rating — September 2026 (%) with 17.76 in 2026.
📊
Average TIOBE Rating — September 2026 (%) in 2026: 5.90 · median: 3.49.
↔️
Gap in 2026: Python is 13.3× larger than Rust.
About This Dataset
Most Popular Programming Languages — September 2026
The ten highest-rated languages in the September 2026 TIOBE Index. Ratings are percentages in a monthly popularity indicator built from web-search signals, skilled engineers, courses and vendors. They are not percentages of developers using each language, code written, or job vacancies. The year labels refer to this September snapshot, not an annual average. The linked TIOBE page updates monthly, so later editions may show different values.
Analysis
Python leads at 17.76%, followed by C at 10.28% and C++ at 8.67%. Python is 7.48 percentage points ahead of C. SQL ranks eighth at 2.16%, while Rust completes this top-ten snapshot at 1.34%. These differences compare TIOBE ratings; choosing a language still depends on the project and its ecosystem.
Data Insights
Numbers, trends & sources behind this chart
Methodology & source
- Data source
- TIOBE Index — September 2026
- Coverage
- 10 entities · 2026 · 10 observations
- Measure
- TIOBE Rating — September 2026 (%)
- Last updated
- 6 October 2026
- Compiled by
- The ANYSTAT team, from the source above
How the figures are calculated
- Values are shown as reported by the source. Nothing is rescaled, rebased or converted — the only changes are thousand separators and decimals shown to two places.
- Entities are ranked highest-first on their value in 2026.
Data Sources & References
All external sources cited in this dataset
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