Wastewater - connection rates to treatment — Public total treatment in Bulgaria
Bulgaria: Wastewater - connection rates to treatment — Public total treatment was 67.37 Percentage of population in 2023. ▲ Rising
Wastewater - connection rates to treatment — Public total treatment in Bulgaria, 1993–2023
Source: Organisation for Economic Co-operation and Development. Measured in Percentage of population.
Analysis
In 2023, wastewater - connection rates to treatment — public total treatment in Bulgaria stood at 67.37 Percentage of population. That is the highest value across all 31 years on record.
The figure is up 0.3% on the previous year and up 19.4% over ten years.
Over the whole period, wastewater - connection rates to treatment — public total treatment in Bulgaria peaked at 67.37 Percentage of population in 2023 and was at its lowest, 34.9 Percentage of population, in 1993.
Bulgaria ranks 25th of 36 countries on this measure, in the middle of the range.
The long-run direction has been consistently rising across the 31 years of available data.
Wastewater - connection rates to treatment — Public total treatment in Bulgaria, year by year
| Year | Percentage of population | Change |
|---|---|---|
| 1993 | 34.9 Percentage of population | — |
| 1994 | 36 Percentage of population | +3.2% |
| 1995 | 36 Percentage of population | +0.0% |
| 1996 | 35.9 Percentage of population | -0.3% |
| 1997 | 36 Percentage of population | +0.3% |
| 1998 | 36.2 Percentage of population | +0.6% |
| 1999 | 36.6 Percentage of population | +1.1% |
| 2000 | 36.9 Percentage of population | +0.8% |
| 2001 | 38.4 Percentage of population | +4.1% |
| 2002 | 38.8 Percentage of population | +1.0% |
| 2003 | 40.1 Percentage of population | +3.4% |
| 2004 | 40.5 Percentage of population | +1.0% |
| 2005 | 40.82 Percentage of population | +0.8% |
| 2006 | 41.35 Percentage of population | +1.3% |
| 2007 | 42.28 Percentage of population | +2.2% |
| 2008 | 43.94 Percentage of population | +3.9% |
| 2009 | 45.29 Percentage of population | +3.1% |
| 2010 | 47.76 Percentage of population | +5.5% |
| 2011 | 55.8 Percentage of population | +16.8% |
| 2012 | 56.06 Percentage of population | +0.5% |
| 2013 | 56.44 Percentage of population | +0.7% |
| 2014 | 56.76 Percentage of population | +0.6% |
| 2015 | 62.3 Percentage of population | +9.8% |
| 2016 | 63.14 Percentage of population | +1.3% |
| 2017 | 63.42 Percentage of population | +0.4% |
| 2018 | 63.92 Percentage of population | +0.8% |
| 2019 | 64.61 Percentage of population | +1.1% |
| 2020 | 66.65 Percentage of population | +3.2% |
| 2021 | 66.79 Percentage of population | +0.2% |
| 2022 | 67.17 Percentage of population | +0.6% |
| 2023 | 67.37 Percentage of population | +0.3% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 35.94 Percentage of population | 34.9 Percentage of population | 36.6 Percentage of population | 7 |
| 2000s | 40.84 Percentage of population | 36.9 Percentage of population | 45.29 Percentage of population | 10 |
| 2010s | 59.02 Percentage of population | 47.76 Percentage of population | 64.61 Percentage of population | 10 |
| 2020s | 66.99 Percentage of population | 66.65 Percentage of population | 67.37 Percentage of population | 4 |
Countries ranked near Bulgaria
- 22 United States 75.5 Percentage of population compare
- 23 Portugal 70.7 Percentage of population compare
- 24 Italy 70 Percentage of population compare
- 26 Ireland 66.19 Percentage of population compare
- 27 South Africa 65.5 Percentage of population compare
- 28 Saudi Arabia 61 Percentage of population compare
More environment data for Bulgaria
- Historical exposure to drought — Land soil moisture anomaly -1.39 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -1.52 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.573 °C (2025)
- Temperature change 2.18 °C (2025)
- Paper and paperboard — Import quantity, annual growth rate 10.24 % change on previous year (2024)
- Paper and paperboard — Import quantity, per unit of GDP 0 t per US$ of GDP (2024)
- Paper and paperboard — Import quantity, per capita 0.0638 t per person (2024)
- Paper and paperboard — Import value, annual growth rate 1.47 % change on previous year (2024)
- Paper and paperboard — Import value, per unit of GDP 0 1000 USD per US$ of GDP (2024)
Frequently asked questions
- What is wastewater - connection rates to treatment — public total treatment in Bulgaria?
- Wastewater - connection rates to treatment — public total treatment in Bulgaria was 67.37 Percentage of population in 2023, according to Organisation for Economic Co-operation and Development.
- What is the highest wastewater - connection rates to treatment — public total treatment recorded in Bulgaria?
- The highest recorded value was 67.37 Percentage of population in 2023.
- What is the lowest wastewater - connection rates to treatment — public total treatment recorded in Bulgaria?
- The lowest recorded value was 34.9 Percentage of population in 1993.
- How does Bulgaria rank for wastewater - connection rates to treatment — public total treatment?
- Bulgaria ranks 25th out of 36 countries with data for 2023.
- Is wastewater - connection rates to treatment — public total treatment rising or falling in Bulgaria?
- Over the last ten years it is up 19.4%. The long-run trend across the full record is rising.
- Where does this Bulgaria data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Wastewater - connection rates to treatment — Public total treatment. Statizoid updates them automatically from the source API.
Download this data
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About this data
This dataset provides information on the level of public equipment installed by countries to managed and abate water pollution. It shows the percentage of national population connected to "public" sewerage networks and related treatment facilities, and the percentage of national population connected to "public" wastewater treatment plants, and the degree of treatment. Connected here means actually connected to a wastewater plants through a public sewage network. When analysing these data, it should be kept in mind that the optimal connection rate is not necessarily 100%. It may vary among countries and depends on geographical features and on the spatial distribution of habitats. The interpretation of those data should take into account some variations in countries' definitions, as reflected in metadata. Data source(s): Joint OECD/Eurostat questionnaire on Inland Waters. Data for non-OECD countries is sourced from UNSD (https://unstats.un.org/unsd/envstats/country_files) Contact: ENV.Stat@oecd.org Dataset release date: August 7, 2026 Country metadata - Métadonnées pays