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Electoral constituency division

There are 165 electoral constituencies in Nepal. On what basis are those constituencies divided? Is Population the sole basis? What does the allocation look like on the level of each district?

people are showing their voting card

The constitution of Nepal on Article "84" Sub article "1" section "a", regarding the delineation of electoral constituencies, states that:

One hundred and sixty five members to be elected through the first past the post electoral system, with one being elected from each election constituency of one hundred and sixty five election constituencies delimited in the country on the basis of geography and population.

Source: "Federal Legislature" Nepal Law Commission, Part-8 Federal Legislature, September 9, 2018, lawcommission.gov.np/en/archives/category/documents/prevailing-law/constitution/constitution-of-nepal

One interesting things to note in this particular regard. How does the constitution seek to divide the electoral constituencies on? Presumably, it's geography and Population. While the term "Population" seems straight forward. The definition of population is generally understood to be the total number of people residing in a particular place at a particular time. Geography, meanwhile, is defined to be the nature and relative arrangement of places and physical features. What does Geography mean when division of electoral constituencies is concerned? Does it mean Area? Not exactly.

Turns out the constitution has a provision for an Electoral Delimitation Committee mentioned on Article "286". According to the article:

The Government of Nepal may constitute an Election Constituency Delimitation Commission, to determine election constituencies for the purpose of election to the members of the Federal Parliament and members of the State Assemblies in accordance with this Constitution, which shall consist of the following as the Chairperson and members:

  • Retired Judge of the Supreme Court -Chairperson
  • One Geographer -Member
  • One sociologist or demographer - Member
  • One administration expert or jurist - Member
  • Gazetted special class officer of the Government of Nepal - Member Secretary
And on the Sub Article 6 of the same article, the constitution states that: While delimitating election constituencies pursuant to clause (5), regard must be had to, inter alia, the density of population, geographical specificity, administrative and transportation convenience, community and cultural aspects of the constituencies.

This clearly shows that area of a particular district is not, in fact, what the constitution means by "Geography". Rather specificity of geography, convenience and various abstract aspects have been included under the term. This denotes that while population remains the major mathematical basis for dividing the constituencies, there are other factors, non-mathematical and abstract, which can impact the division, and are to be sorted out by the Electoral Delimitation Committee. The same provision is echoed in the related law on Article "3" Sub article "1" published in the Nepal Gazette 2073 which uses the terms "bhaugolik anukulata tatha bisisthata"(translated as geographical convenience and specificity) on top of Population Density.

However, the chairman of CDC was quoted on a The Kathmandu Post Article published on 2017 August 13 as:

According to CDC Chairman Kamal Narayan Das, 90 percent weightage has been given to population and 10 percent to geography while carving out the constituencies “after thoroughly considering factors like geography, population distribution, social diversity and laws regarding electoral constituency”.

Source: Giri, Sanjiv. "CDC submits its report with 165 electoral constituencies", The Kathmandu Post, kathmandupost.com/national/2017/08/31/cdc-submits-its-report-with-165-electoral-constituencies

The chairman has been quoted to have explicitly mentioned 10% weightage to the geographical factors. What would 10% mean when the constitution gives an abstract identity to the "Geography" term? That's a question which remains to be pondered upon.

Moving on, a special provision exists in the law published in the Nepal Gazette 2073 which states that every district must be given at least one electoral constituency irrespective of the Population of the district. And following the same provision, the districts like Mustang, Mugu, Dolpa have been given 1 electoral constituency even though the population density is way below the ideal population density for an electoral constituency.

For Other districts, the division is nearly according to population density except in a few districts where population density seems not be followed. Let's take a mathematical dive into what's actually happening. The ideal population per seat can be calculated using the formula:

This means that ideally i.e. if division is to be made solely on the basis of population, every constituency should have a population of approximately 1,60,573. Since, there's also a factor of geography and also that population distribution ideally cannot be uniform on point, a variation in population per every seat can be expected to vary.

Let me clarify the notion with an example. Sarlahi has a population of around 7,69,729 (2011 census). And since the Population per seat for the country is 1,60,573:

Now, if the division had just been on the basis of population, Sarlahi should have been allocated around 5 seats. However, it has been allocated 4 seats. It can be safely assumed that the "geography" factor came into play during the division in this case.

Also, With the population of around 17,44,240, on the basis of population alone, the Kathmandu would have been allocated:

It would, then, seem reasonable to allocate 11 seats to Kathmandu. However, since Kathmandu can be considered to have a high measure of geographical convenience, it has been allocated just 10 seats. Such an impact of "Geography" can be seen in other districts like Bardiya, Baitadi, Chitwan, Ilam and Makwanpur.

A detailed list of how allocation of districts would have looked like if it had been done only on the basis of Population and how it looks in actual case has been attached below. Feel free to ponder more on how "Geography" factor might actually have been quantified.

DistrictPopulation at 2011Area (km²)ZoneNo. of SeatsIdeal populationSurplus PopulationSeats GainedSeats w.r.t. population
Achham257,4771,680Seti2321,086-63,609-0.4401.604
Arghakhanchi197,6321,193Lumbini1160,54337,0890.0201.231
Baglung268,6131,784Dhawalagiri2321,086-52,473-0.5401.673
Baitadi250,8981,519Mahakali1160,54390,3550.4611.563
Bajhang195,1593,422Seti1160,54334,6160.2411.216
Bajura134,9122,188Seti1160,543-25,631-0.0900.840
Banke491,3132,337Bheri3481,6299,6840.4053.060
Bara687,7081,190Narayani4642,17245,5360.6034.284
Bardiya426,5762,025Bheri2321,086105,4900.5882.657
Bhaktapur304,651119Bagmati2321,086-16,4350.2401.898
Bhojpur182,4591,507Kosi1160,54321,916-0.1081.137
Chitwan579,9842,218Narayani3481,62998,3550.8783.613
Dadeldhura142,0941,538Mahakali1160,543-18,449-0.1290.885
Dailekh261,7701,502Bheri2321,086-59,316-0.3441.631
Dang Deokhuri552,5832,955Rapti3481,62970,9540.5943.442
Darchula133,2742,322Mahakali1160,543-27,269-0.2080.830
Dhading336,0671,926Bagmati2321,08614,981-0.1852.093
Dhankuta163,412891Kosi1160,5432,869-0.1271.018
Dhanusa754,7771,180Janakpur4642,172112,6050.6184.701
Dolakha186,5572,191Janakpur1160,54326,0140.1581.162
Dolpa36,7007,889Karnali1160,543-123,843-0.7520.229
Doti211,7462,025Seti1160,54351,2030.1781.319
Gorkha271,0613,610Gandaki2321,086-50,025-0.6121.688
Gulmi280,1601,149Lumbini2321,086-40,926-0.5601.745
Humla50,8585,655Karnali1160,543-109,685-0.6530.317
Ilam290,2541,703Mechi1160,543129,7110.6211.808
Jajarkot171,3042,230Bheri1160,54310,7610.1841.067
Jhapa812,6501,606Mechi5802,7159,9350.2215.062
Jumla108,9212,531Karnali1160,543-51,622-0.2780.678
Kailali775,7093,235Seti5802,715-27,0060.3104.832
Kalikot136,9481,741Karnali1160,543-23,595-0.0330.853
Kanchanpur451,2481,610Mahakali3481,629-30,381-0.0682.811
Kapilvastu571,9361,738Lumbini3481,62990,3070.6933.563
Kaski492,0982,017Gandaki3481,62910,4690.4633.065
Kathmandu1,744,240395Bagmati101,605,430138,8105.30510.865
Kavrepalanchok381,9371,396Bagmati2321,08660,8510.0582.379
Khotang206,3121,591Sagarmatha1160,54345,7690.0011.285
Lalitpur468,132385Bagmati3481,629-13,4970.5312.916
Lamjung167,7241,692Gandaki1160,5437,181-0.1361.045
Mahottari627,5801,002Janakpur4642,172-14,592-0.1283.909
Makwanpur420,4772,426Narayani2321,08699,3910.4512.619
Manang6,5382,246Gandaki1160,543-154,005-0.9760.041
Morang965,3701,855Kosi6963,2582,1120.0146.013
Mugu55,2863,535Karnali1160,543-105,257-0.6210.344
Mustang13,4523,573Dhawalagiri1160,543-147,091-0.9340.084
Myagdi113,6412,297Dhawalagiri1160,543-46,902-0.3860.708
Nawalparasi643,5082,162Lumbini4642,1721,3360.0044.008
Nuwakot277,4711,121Bagmati2321,086-43,615-0.5481.728
Okhaldhunga147,9841,074Sagarmatha1160,543-12,559-0.2400.922
Palpa261,1801,373Lumbini2321,086-59,906-0.6181.627
Panchthar191,8171,241Mechi1160,54331,274-0.0091.195
Parbat146,590494Dhawalagiri1160,543-13,953-0.2590.913
Parsa601,0171,353Narayani4642,172-41,155-0.0473.744
Pyuthan228,1021,309Rapti1160,54367,5590.3331.421
Ramechhap202,6461,546Janakpur1160,54342,1030.0521.262
Rasuwa43,3001,544Bagmati1160,543-117,243-0.7720.270
Rautahat686,7221,126Narayani4642,17244,5500.7084.277
Rolpa224,5061,879Rapti1160,54363,9630.3061.398
Rukum208,5672,877Rapti1160,54348,0240.2561.299
Rupandehi880,1961,360Lumbini5802,71577,4810.9515.483
Salyan242,4441,462Rapti1160,54381,9010.4981.510
Sankhuwasabha158,7423,480Kosi1160,543-1,801-0.1390.989
Saptari639,2841,363Sagarmatha4642,172-2,888-0.1003.982
Sarlahi769,7291,259Janakpur4642,172127,5571.0724.795
Sindhuli296,1922,491Janakpur2321,086-24,894-0.2941.845
Sindhupalchok287,7982,542Bagmati2321,086-33,288-0.2091.793
Siraha637,3281,188Sagarmatha4642,172-4,844-0.1323.970
Solukhumbu105,8863,312Sagarmatha1160,543-54,657-0.4330.660
Sunsari763,4871,257Kosi4642,172121,3151.0704.756
Surkhet350,8042,451Bheri2321,08629,7180.3202.185
Syangja289,1481,164Gandaki2321,086-31,938-0.5661.801
Tanahu323,2881,546Gandaki2321,0862,202-0.1962.014
Taplejung127,4613,646Mechi1160,543-33,082-0.3440.794
Terhathum101,577679Kosi1160,543-58,966-0.5040.633
Udayapur317,5322,063Sagarmatha2321,086-3,554-0.0931.978
75 districts26,494,504147,18126,494,5040165.000165.031

Reference: UNFPA NEPAL 2017, "Nepal Population Situation Analysis", nepal.unfpa.org/sites/default/files/pub-pdf/Nepal%20Population%20Situation%20Analysis.pdf