بر پایهٔ آمار رسمی ازبکستان تاجیک‌ها ۵٪ از جمعیت کل این کشور را شامل می‌شوند. اما آمارهای غیررسمی شمار تاجیکان این کشور را میان ۱۰ تا ۱۲ میلیون نفرKarl Cordell, "Ethnicity and Democratisation in the New Europe", Routledge, 1998. p. 201: "Consequently, the number of citizens who regard themselves as Tajiks is difficult to determine. Tajikis within and outside of the republic, Samarkand State University (SamGU) academic and international commentators suggest that there may be between six and seven million Tajiks in Uzbekistan, constituting 30% of the republic's 22 million population, rather than the official figure of 4.7%(Foltz 1996;213; Carlisle 1995:88).Lena Jonson (1976) "Tajikistan in the New Central Asia", I.B.Tauris, p. 108: "According to official Uzbek statistics there are slightly over 1 million Tajiks in Uzbekistan or about 3% of the population. The unofficial figure is over 6 million Tajiks. They are concentrated in the Sukhandarya, Samarqand and Bukhara regions." یا ۳۰ تا ۴۰ درصد از جمعیت کل کشورCarlson, "Uzbekistan: Ethnic Composition and Discriminations", Harvard University, August 2003The Tajiks of Uzbekistan, Central Asian Survey (1996), 15(2), 213-216Svante E. Cornell, "Uzbekistan: A Regional Player in Eurasian Geopolitics?" , "European Security", vol. 20, no. 2, Summer 2000.Richard Foltz, "The Tajiks of Uzbekistan", "Central Asian Survey", 15(2), 213–216 (1996).Karl Cordell, "Ethnicity and Democratisation in the New Europe", Published by Routledge, 1999. Excerpt from pg 201: "Consequently, the number of citizens who regard themselves as Tajiks is difficult to determine. Tajikis within and outside of the republic, Samarkand State University (SamGU) academic and international commentators suggest that there may be between six and seven million Tajiks in Uzbekistan, constituting 30% of the republic's 22 million population, rather than the official figure of 4.7%(Foltz 1996;213; Carlisle 1995:88).Lena Jonson, "Tajikistan in the New Central Asia", Published by I.B.Tauris, 2006. pg 108: "According to official Uzbek statistics there are slightly over 1 million Tajiks in Uzbekistan or about 4% of the population. The unofficial figure is over 6 million Tajiks. They are concentrated in the Sukhandarya, Samarqand and Bukhara regions." برآورد می‌کند. فارسی‌زبانان در ازبکستان بیشتر در دو شهر سمرقند و بخارا و ولایت سرخان‌دریا سکونت دارند؛ هرچند در دیگر مناطق ولایت‌های سمرقند و بخارا و همچنین ولایت‌های قشقه‌دریا، نمنگان، فرغانه و سیردریا نیز به‌طور پراکنده یافت می‌شوند. ریچارد فولتس در برآوردی در سال ۱۹۹۶ زبان ۷۰٪ از اهالی سمرقند و ۹۰٪ از اهالی بخارا را فارسی اعلام کرده‌است.Richard Foltz, "The Tajiks of Uzbekistan", "Central Asian Survey", 15(2), 213-216 (1996). افزون بر سمرقند و بخارا، گروه‌های بزرگ فارسی‌زبان در کاسانسای، چوست، رشتان و ساخ در دره فرغانه، همچنین بورچ‌ملا، آهنگران و باغستان در ولایت تاشکند و افزون بر آن شهرسبز، ترمذ، نخشب، نوایی، کتاب و دره‌های رودهای کافرنهان و چغان‌رود می‌زیند.Cordell, Karl (1998) "Ethnicity and Democratisation in the New Europe", Routledge, , p. 201: "Consequently, the number of citizens who regard themselves as Tajiks is difficult to determine. Tajikis within and outside of the republic, Samarkand State University (SamGU) academic and international commentators suggest that there may be between six and seven million Tajiks in Uzbekistan, constituting 30% of the republic's 22 million population, rather than the official figure of 4.7% (Foltz 1996;213; Carlisle 1995:88).